ONE touch control -Turn one light on and all your CatEyeSYNC™ lights come on. Using wireless technology, CatEyeSYNC™ lights provide the ease of synchronizing all lights to operate as one. Check battery levels, customize modes, set brake mode and synchronize flash pattern preferences using your Smartphone.  Simple and superior 360-degree visibility is one touch away with up to 7 lights synced to operate as one. (the other CatEyeSYNC™ light options that can be added to your SYNC Kinetic system are SYNC Core and SYNC Wearable.)