GENUINE INNOVATION FROM THE MARKET LEADER - A SMARTER SOLUTION FOR ALL CatEye SYNC is an easier, quicker and safer lighting solution for all types of cyclists, from commuters to enthusiast riders. CatEye SYNC offers: Multiple lights in SYNC Just one touch SYNCs all Smarter visibility, day or night All angles, covered Be seen all-round, year round ROAD SAFETY RESEARCH CatEye’s utilises data from the Institute for Traffic Accident Research and Data Analysis in Japan. This important data is relevant to all modern cities with commuting cyclists across the globe. 78% of all fatal accidents occur in the daytime. Crossing collisions are most frequent, but rear-end and left / right turn collisions are also common. 87% of human-factor accidents are caused by a delay in noticing the cyclist. CatEye SYNC means: Synchronised Customisable Communicative Synchronised: CatEye SYNC is an easier, quicker and safer lighting solution for many types of cyclists, from commuters to enthusiast riders. CatEye SYNC means easy on/off – all lights can be turned on/off through one switch on the front light. No separate remote required. CatEye SYNC makes you stand out – synchronise the flash timing of rear lights for improved visibility to other vehicles on the road, day or night. Customisable: CatEye SYNC is compatible with Smartphones, using the CatEye SYNC app to set up and monitor up to 7 SYNC lights. Exclude modes you’re not going to use on the front SYNC Core light Synchronise the SYNC rear lights so that they flash in unison. Synchronise the SYNC rear lights to all activate in Kinetic mode. Communicative: The CatEye SYNC app includes battery level information for all SYNC lights, all communicated through the SYNC Core front light switch. The SYNC Core monitors power levels and connectivity, eliminating any worries over whether your rear lights are still illuminated and synced while riding. No more checking behind you! The CatEye SYNC app’s “Find Me” mode identifies which rear lights need charging if you are using multiple numbers of the same rear light. The definitive starting point for the CatEye SYNC consumer, this new set offers a 15% saving over buying the SYNC Core and SYNC Kinetic separately. Switch both lights on / off with the power button of the SYNC Core front light Additional lights can be added and fully customised for enhanced, dynamic, controlled visibility, day or night. Details as per SYNC Core front and SYNC Kinetic rear lights. The CatEye SYNC Core is the heart of the SYNC lighting system. Premium textured polycarbonate body 500 Lm output for maximum visibility Superior side-on visibility for added safety Customise modes via the SYNC app Power button communicates pairing & battery info: GREEN ON – other lights are paired OFF – paired light(s) disconnected GREEN FLASH – low battery on rear light(s) RED FLASH – low battery on Core headlight Specification: Charging Time: 3-6 hrs ( USB 2.0 ) Weight: 94g incl. Flextight bracket Mode: Output, Runtime High: 500 Lm, 2 hrs Middle: 150 Lm, 9 hrs Low: 100 Lm, 15 hrs Daytime HyperConstant: 100/500 Lm, 18 hrs Flashing: 100 Lm, 130 hrs The CatEye SYNC Kinetic features a 5 LED design (1 x 30 Lm, 4 x 5 Lm) with a large 30 Lm main LED providing increased visibility from distance. Permanent kinetic functionality across all modes – 50 Lm “burst” under braking / deceleration to alert other road users behind you Customise modes via the SYNC app Superior side-on visibility for added safety at junctions and crossroads USB rechargeable battery Mode: Output, Runtime Kinetic: 50 Lm burst in all modes High: 40 Lm, 1.5 hrs Low: 4 Lm, 15 hrs Flashing: 30 Lm, 50 hrs Group Ride: 40 Lm, 15 hrs (low pulse) Rapid: 50 Lm, 20 hrs Daytime HyperFlash: 50/50 Lm, 30 hrs Charging Time: 2.5 hrs ( USB 2.0 ) Weight: 43g incl. band
The Cateye Sync Core 500 Front Light might not be the most powerful, but it does pack some seriously smart features! Using Cateye's SYNC technology, the Core 500 can be synchronised with up to 7 compatible Sync lights to offer full 360-degree visibility.5 light modes with up to 500 lumens in high modeRechargeable lithium-ion battery lasts up to 130hrs (Flashing mode)SYNC Technology allows you to sync the light with up to 7 compatible lights for better visibility6 hour recharge time, 3 hours when using fast-recharge cableLightweight at 94g (light unit and battery)The Sync Core 500's compact size neatly hides some brilliant features, with a single LED emitting up to 500 lumens through it's round-beam pattern OptiCube lens with superior side visibility and features 5 different modes. Along with medium (150 lumens), low and flashing (both 100 lumens) the Sync Core 500 also features Cateye's innovative Hyper Constant mode. Ideal for daytime use, in Hyper Constant mode you get 100 lumens with a 500 lumen pulse to help you remain visible during the day. Hyper Constant also dramatically extends battery life, with burn time extending to a whopping 18 hours!Hyper Constant mode isn't the only innovative feature of the Sync Core 500 though. Thanks to Cateye's SYNC technology, the light can be synchronised with up to 7 different compatible lights, in order to provide full 360-degree visibility. The light also includes a fast charging circuit, so re-charge time can be cut from 6 to 3 hours when using the included fast recharge USB cable. The FlexTight bracket is also incredibly easy to use, taking to fit or remove. The Cateye Sync Core 500 packs a lot of technology into a sleek and stylish package and is the perfect choice for commuters looking for a versatile light to suit all conditions.
Light Modes Cateye’s Sync Core front light comes with five different light modes which can easily be toggled through to pick the best light mode for your current lighting environment and remaining battery life. The light also comes with a light memory mode system that means when you turn the light on it will still be in the last mode that you selected. The light modes included are: Mode One (High): 500 lumens light output – 2 hours battery life Mode Two (Middle): 150 lumens light output – 9 hours battery life Mode Three (Low): 100 lumens light output – 15 hours battery life Mode Four (Daytime HyperConstant): 500/100 lumens light output – 18 hours battery life Mode Five (Flashing): 100 lumens light output – 130 hours battery life CatEyeSYNC Technology When using multiple different bike lights and devices you can gain full control over all your lights using CatEyeSYNC technology. The technology exists in the form of a smartphone app which allows you to see all your light’s differing battery lives and allows you to have full control over your differing light modes. Side Visibility The Core light comes with Cateye’s OptiCube lens technology which creates a rounder beam pattern that provides excellent levels of side visibility. This is important when you’re cycling through built up urban areas where you’ll often be forced to traverse several lanes of traffic and find yourself dealing with motorists from multiple different angles. USB Rechargeable To save you the constant hassle of having to change your bike light’s batteries the Core comes with a rechargeable Li-ion battery. The light’s power button also doubles as a battery level light, so you know when it’s time to recharge with or without the use of the CatEyeSYNC app. The light comes with a micro-USB charging cable that makes it easier than ever to charge on the go via any standard USB port.
USB Rechargeable Cateye’s Sync Set Core contains front and rear bike lights that are fully USB rechargeable and both lights are provided with a Micro-USB charging cable. This allows you to quickly and easily charge your bike lights via any standard USB port which are easily found as part of your computer desktop for quick charging on the go. This saves you the hassle of constantly having to find and replace your light’s batteries. Mounting Front Light The front light comes with the integrated FlexTight bracket built into its design. The bracket can easily be adjusted to fit any type of handlebars. Optional helmet mounts, centre fork brackets, and out-front brackets are available for further mounting options offering you full versatility. Rear Light The rear light also comes with an integrated mounting strap that allows you to easily take the light on and off your seatpost. Side Visibility All of Cateye’s latest lights have been specially adapted to provide an increased level of side visibility. Side visibility helps you to stay seen from multiple angles which is important when cycling through built up urban areas where you’ll often be dealing with multiple lanes of traffic. Light Modes The lights both come with multiple light modes that are easily toggled between to give you plenty of options to find the best possible light mode for your current lighting environment and battery life. The light modes included are: Front Light Mode One (High): 500 lumens light output – 2 hours battery life Mode Two (Middle): 150 lumens light output – 9 hours battery life Mode Three (Low): 100 lumens light output – 15 hours battery life Mode Four (Daytime HyperConstant): 500/100 lumens light output – 18 hours battery life Mode Five (Flashing): 100 lumens light output – 130 hours battery life Rear Light Mode One (High): 40 lumens light output – 1.5 hours battery life Mode Two (Low): 5 lumens light output – 15 hours battery life Mode Three (Flashing): 30 lumens light output – 50 hours battery life Mode Four (Rapid): 50 lumens light output – 20 hours battery life Mode Five (Group Ride): 40 lumens light output – 15 hours battery life Mode Six (Daytime HyperFlash): 50 lumens light output – 30 hours battery life CatEyeSYNC Both lights come with Cateye’s new CatEyeSYNC that is a smartphone application that allows you to sync all your lights. With the use of the app you can turn all your bike lights on and off with just one quick touch. The app also provides you with full control for each of your lights during, before and after cycling. Some of the best features included with the app are: Pairs up to seven different bike lights Customises light modes View remaining battery level Turn on and off synchronization of lights Find me function - lets the lights flash by tapping a single button on the app
USB Rechargeable Cateye’s Sync Wearable comes with a Micro-USB cable that allows you to charge the bike light via any standard USB port. This allows you to charge on the go and saves you the hassle of having to find and replace your light’s bike lights. Mounting The light also comes with versatile mounting options and comes with a clip-on bracket and a rubber strap. The clip-on bracket provides easy installation of the light to backpacks, saddle bags, or clothing. Meanwhile the rubber strap allows you to easily connect the light to your seat-post on a large range of different bike frame types. Side Visibility Cateye’s Sync Wearable comes with OptiCube lens technology which optimises the light’s visibility. The lens not only provides crystal clear lighting but also splits the light to ensure excellent levels of side visibility helping you stay seen from multiple angles. Light Modes Small but mighty the Sync Wearable comes with six different light modes that can easily be toggled between allowing you to find the best possible lighting for your current environment or battery life. The light modes included: Mode One (High): 30 lumens light output – 1.5 hours battery life Mode Two (Low): 2 lumens light output – 18 hours battery life Mode Three (Flashing): 50 lumens light output – 45 hours battery life Mode Four (Rapid): 50 lumens light output – 16 hours battery life Mode Five (Group Ride): 50 lumens light output – 12 hours battery life Mode Six (Daytime HyperFlash): 50 lumens – 25 hours battery life CatEyeSYNC The Sync Wearable comes with Cateye’s new CatEyeSYNC that is a smartphone application that allows you to sync all your lights. With the use of the app you can turn all your bike lights on and off with just one quick touch. The app also provides you with full control for each of your lights during, before and after cycling. Some of the best features included with the app are: Pairs up to seven different bike lights Customises light modes View remaining battery level Turn on and off synchronization of lights Find me function - lets the lights flash by tapping a single button on the app
Cateye Sync Wearable Wearable Light (35/40L)A wearable rear bike light that can be mounted on your seatpost, backpack, clothing, saddle bags, and more.Cateye SyncThe new Cateye Sync technology gives you more control than ever. By using the smartphone app (available through Google Play and App Store) you can see at the touch of a button your light’s battery life and control your light’s modes. This is especially useful when using multiple Cateye Sync bike lights.Light ModesCateye’s Sync Wearable comes with six different light modes which can easily be toggled through using the Cateye Sync app. The different modes make it easy to find the perfect lighting for your current environment and depleting battery life. The modes include a Group Ride mode which keeps you visible but doesn’t distract fellow riders and the Daytime HyperFlash mode which can keep you visible even in direct sunlight.High: 30 lumens – 1.5 hoursLow: 2 lumens – 18 hoursFlashing: 50 lumens – 45 hoursRapid: 50 lumens – 16 hoursGroup Ride: 50 lumens – 12 hoursDaytime HyperFlash: 50 lumens – 25 hoursUSB RechargeableTo save you time and money the light comes with an internal lithium-ion polymer battery which is USB rechargeable. With the supplied cable you can easily recharge the light through any standard USB port for quick and easy charging on the go. Using the Cateye Sync app you easily know when it’s time to charge and the light can be fully recharged in just 2.5 hours with a battery life of up to 25 hours.MountingThe light comes with multiple different mounting options coming with a clip bracket and universal band. The universal band allows you to mount the light to your seatpost fitting both standard and aero bars with a size of 22-32mm. Meanwhile, the clip bracket can be used to securely attach the light to backpacks, clothing and panniers.FeaturesCOB LED6 different light modesIncludes Group Ride and Daytime HyperFlash modeUSB rechargeable lithium-ion polymer batteryLow battery indicatorOptiCube lens technologySuperior side visibilityComes with rubber strap bike mountClip-on bracket for further installationCateye Sync technologyWeighs 21gDimensions: 45.5 x 44 x 20mmBuy Cateye Lights from Chain Reaction Cycles, the World's Largest Online Bike Store.
Cateye Sync Set Core & Kinetic Bike Light SetThe perfect commuter light set including a 500 lumen front light and 50 lumen rear light.SyncCateye’s Sync Set Core front light and Kinetic rear light come with Sync technology which lets you fully control the lights via the Cateye Sync app. The app lets you control the lights quickly and easily – turning the lights on, off and switching between modes.Light ModesBoth lights come with a collection of light modes which can easily be switched between using Sync technology or by using the light’s power button. Both lights include a Daytime HyperConstant/HyperFlash mode which allows you to stay visible even in direct sunlight. The rear light also comes with a Group Ride mode that keeps you seen but minimises the distractions for fellow riders following in your trail.Sync Core (Front Light)High: 500 lumens – 2 hoursMiddle: 150 lumens – 9 hoursLow: 100 lumens – 15 hoursDaytime HyperConstant: 500/100 lumens – 18 hoursFlashing: 100 lumens – 130 hoursSync Kinetic (Rear Light)High: 40 lumens – 1.5 hoursLow: 4 lumens – 15 hoursFlashing: 30 lumens – 50 hoursGroup Ride: 40 lumens – 15 hoursRapid: 50 lumens – 20 hoursDaytime HyperFlash: 50/50 lumens – 30 hoursKineticThe rear light comes with Kinetic light technology which uses a built-in speed sensor which senses when you’re decelerating and automatically changes the light output up to 50 lumens. This makes fellow riders and motorists at your rear sense you’re slowing down so they can react in plenty of time. USB RechargeableBoth lights come with rechargeable batteries with charging cables that allow you to charge the lights via any standard USB port. Using the Cateye Sync app you clearly see your light’s battery’s battery lives and know when it’s time to charge.MountingIntegrated into the design of both lights are mounting straps with adjustable designs which allow you to easily connect the lights to your handlebar and seatpost. The mounts also make it easy to take the lights off your bike frame in a hurry which is especially convenient for commuters.FeaturesIncludes front and rear lightDaytime and Group ride modesKinetic rear light technologySync systemIntegrated mounting straps360-degrees of visibilityUSB rechargeableFront light weighs 94gRear light weighs 43gBuy Cateye Lights from Chain Reaction Cycles, the World's Largest Online Bike Store.
Cateye Sync Core Front Bike Light (500L)A great commuter front light with up to 500 lumens of light output with full control via the Cateye Sync app.Cateye SyncCateye’s Sync Core front light comes with Cateye Sync technology which uses the Sync app (available through Goggle Play and the App Store) which gives you full control over all your light devices. With a couple of taps on your smartphone you can turn your lights on and off and switch light modes. This is especially useful when using multiple Cateye Sync lights.Light ModesThe light comes with 5 different light modes with a range of outputs that suits a variety of lighting conditions and your depleting battery life. The modes include the Daytime HyperConstant mode which keeps you visible even in direct sunlight.High: 500 lumens – 2 hoursMiddle: 150 lumens – 9 hoursLow: 100 lumens – 15 hoursDaytime HyperConstant: 500/100 lumens – 18 hoursFlashing: 100 lumens – 130 hoursUSB RechargeableThe internal lithium-ion battery is USB rechargeable and the light can be fully recharged via any standard USB port. With the use of the Cateye Sync app you can easily see when it’s time to recharge the light and it takes just 3 hours to fully recharge the light and it comes with a battery life of up to 130 hours of battery life.MountingAn integrated FlexTight mounting bracket with an adjustable design that will fit most handlebars.FeaturesCateye Sync technology5 light modesOptiCube lens technologySuperior side visibilityDaytime HyperConstant modeHigh intensity white LEDUSB rechargeable lithium-ion batteryUp to 130 hours of battery life3 hours full recharge timeFlexTight mounting bracketWeighs 94gDimensions: 41.5 x 33.5 x 93Buy Cateye Lights from Chain Reaction Cycles, the World's Largest Online Bike Store.
Cateye Sync Kinetic Rear Bike Light (40/50L)A great commuter rear light that suits a range of bike frames with multiple light modes, full control via the Cateye Sync app, and automatic sensor control via the Kinectic system.Cateye SyncCateye’s Sync Kinectic rear light comes with full control through the Cateye Sync app (available through Google Play and the App Store). The app provides full control over the bike light and with a couple of taps on your smartphone you can turn the light on, off and change light mode. You can also view your light’s real-time current battery life. This is especially useful when using multiple Cateye sync lights.OptiCube LensThe light comes with an OptiCube lens which spreads the beam of the 5 red LEDs providing excellent side visibility which is great for cyclist moving through built-up urban areas.Light ModesWith 6 different light modes the light comes with various outputs which suits a range of different conditions and your depleting battery life. A specialised Group Ride mode provides an output which will keep you visible but doesn’t distract fellow riders. Meanwhile, the Daytime HyperFlash mode will keep you seen during daylight hours. High: 40 lumens – 1.5 hoursLow: 5 lumens – 15 hoursFlashing: 30 lumens – 50 hoursRapid: 50 lumens – 20 hoursGroup Ride: 40 lumens – 15 hoursDaytime HyperFlash: 50 lumens – 30 hoursKinectic LightingWith a built-in acceleration sensor, the light automatically detects when you’re decelerating and boosts the light’s output to 50 lumens. This helps keep fellow road users aware of your movements – ensuring they know when you’re stopping and preventing accidents.USB RechargeableIn-built into the interior of the light is a lithium-ion polymer battery which is USB rechargeable and provided with a Micro-USB cable. You can easily plug the light into any standard USB port for quick and easy charging on the go. The light takes just 2.5 hours to fully recharge and has a battery life of up to 50 hours.MountingThe light comes with an integrated seatpost mounting strap which fits both standard and aero bars. The strap provides a quick release option which is excellent for commuters.Features5 Red LEDsRechargeable lithium polymer battery2.5 hours full recharge timeCateye Sync app controlKinetic technology6 different light modesDaytime HyperFlash and Group Ride modeOptiCube lens technologySuperior side visibilityRubber band mountWeighs 43gDimensions: 74.5 x 26 x 28mmBuy Cateye Lights from Chain Reaction Cycles, the World's Largest Online Bike Store.
Dynamic controlled visibility • The definitive starting point for the CatEye SYNC consumer• Switch both lights on / off with the power button of the SYNC Core front light• Additional lights can be added and fully customised for enhanced dynamic controlled visibility day or night SYNC CoreMode: Output RuntimeHigh: 500 Lm 2 hrsMiddle: 150 Lm 9 hrsLow: 100 Lm 15 hrsDaytime HyperConstant: 500 / 100 Lm 18 hrsFlashing: 100 Lm 130 hrsCharging Time: 3-6 hrs (USB 2.0)Weight: 94g incl. Flextight bracket SYNC KineticMode: Output RuntimeKinetic: 50 Lm burst in all modesHigh: 40 Lm 1.5 hrsLow: 4 Lm 15 hrsFlashing: 30 Lm 50 hrsGroup Ride: 40 Lm 15 hrs (low pulse)Rapid: 50 Lm 20 hrsDaytime HyperFlash: 50 / 50 Lm 30 hrsCharging Time: 2.5 hrs (USB 2.0)Weight: 43g incl. band GENUINE INNOVATION FROM THE MARKET LEADER - A SMARTER SOLUTION FOR ALL CatEye SYNC is an easier quicker and safer lighting solution for all types of cyclists from commuters to enthusiast riders. CatEye SYNC offers:• Multiple lights in SYNC• Just one touch SYNCs all• Smarter visibility day or night• All angles covered• Be seen all-round year round ROAD SAFETY RESEARCHCatEye’s utilises data from the Institute for Traffic Accident Research and Data Analysis in Japan. This important data is relevant to all modern cities with commuting cyclists across the globe.• 78% of all fatal accidents occur in the daytime. • Crossing collisions are most frequent but rear-end and left / right turn collisions are also common.• 87% of human-factor accidents are caused by a delay in noticing the cyclist. CatEye SYNC means:• Synchronised• Customisable• Communicative Synchronised: • CatEye SYNC is an easier quicker and safer lighting solution for many types of cyclists from commuters to enthusiast riders.• CatEye SYNC means easy on/off – all lights can be turned on/off through one switch on the front light. No separate remote required. • CatEye SYNC makes you stand out – synchronise the flash timing of rear lights for improved visibility to other vehicles on the road day or night. Customisable:• CatEye SYNC is compatible with Smartphones using the CatEye SYNC app to set up and monitor up to 7 SYNC lights.• Exclude modes you’re not going to use on the front SYNC Core light• Synchronise the SYNC rear lights so that they flash in unison. • Synchronise the SYNC rear lights to all activate in Kinetic mode. Communicative:• The CatEye SYNC app includes battery level information for all SYNC lights all communicated through the SYNC Core front light switch. • The SYNC Core monitors power levels and connectivity eliminating any worries over whether your rear lights are still illuminated and synced while riding. No more checking behind you!• The CatEye SYNC app’s “Find Me” mode identifies which rear lights need charging if you are using multiple numbers of the same rear light.
With 500 lumens and excellent side visibility the SYNC Core gives you the power to see and be seen. Can be used alone or – better still – combined with other CatEyeSYNC™ enabled lights for unparalleled levels of 360-degree visibility day or night. Compact and lightweight high power rechargeable headlight (500lm) Excellent daytime visibility in Daytime HyperConstant mode Superior side visibility Round beam pattern with OptiCube™ lens technology Built-in fast recharging circuit Lithium-ion rechargeable battery USB rechargeable (Micro-USB cable included) 5 light modes * Charging time: 3-6 hrs Mode memory function FlexTight™ bracket Optional helmet mount center fork bracket and out-front bracket 2 available *The smartphone CatEyeSYNC™ app is required to pair the lights. Before you purchase be sure to check to see if your smartphone model is compatible. CatEyeSYNC™ Compatible Device ListPC or Mac with internet connection is required for firmware update of the CatEyeSYNC™ lights.
Provides greater side-on visibility • Enhanced version of the super-bright Wearable X providing greater side-on visibility thanks to a deeper design• Double-ring COB LED technology• Customise modes via the SYNC app• Switchable Kinetic functionality• Will sync modes with other SYNC rear lights for dynamic visibility• Quick & easy to attach and detach• Suitable for use on luggage and clothing• USB rechargeable battery Mode: Output RuntimeKinetic: 50 Lm burst (switchable on or off)High: 30 Lm 1.5 hrs Low: 2 Lm 18 hrsFlashing: 50 Lm 45 hrs Group Ride: 30 Lm 10 hrs (low pulse)Rapid: 50 Lm 16 hrs Daytime HyperFlash: 50 / 50 Lm 25 hrsCharging Time: 2.5 hrs (USB 2.0)Weight: 21g incl. band GENUINE INNOVATION FROM THE MARKET LEADER - A SMARTER SOLUTION FOR ALL CatEye SYNC is an easier quicker and safer lighting solution for all types of cyclists from commuters to enthusiast riders. CatEye SYNC offers:• Multiple lights in SYNC• Just one touch SYNCs all• Smarter visibility day or night• All angles covered• Be seen all-round year round ROAD SAFETY RESEARCHCatEye’s utilises data from the Institute for Traffic Accident Research and Data Analysis in Japan. This important data is relevant to all modern cities with commuting cyclists across the globe.• 78% of all fatal accidents occur in the daytime. • Crossing collisions are most frequent but rear-end and left / right turn collisions are also common.• 87% of human-factor accidents are caused by a delay in noticing the cyclist. CatEye SYNC means:• Synchronised• Customisable• Communicative Synchronised: • CatEye SYNC is an easier quicker and safer lighting solution for many types of cyclists from commuters to enthusiast riders.• CatEye SYNC means easy on/off – all lights can be turned on/off through one switch on the front light. No separate remote required. • CatEye SYNC makes you stand out – synchronise the flash timing of rear lights for improved visibility to other vehicles on the road day or night. Customisable:• CatEye SYNC is compatible with Smartphones using the CatEye SYNC app to set up and monitor up to 7 SYNC lights.• Exclude modes you’re not going to use on the front SYNC Core light• Synchronise the SYNC rear lights so that they flash in unison. • Synchronise the SYNC rear lights to all activate in Kinetic mode. Communicative:• The CatEye SYNC app includes battery level information for all SYNC lights all communicated through the SYNC Core front light switch. • The SYNC Core monitors power levels and connectivity eliminating any worries over whether your rear lights are still illuminated and synced while riding. No more checking behind you!• The CatEye SYNC app’s “Find Me” mode identifies which rear lights need charging if you are using multiple numbers of the same rear light.