2x Pcs Bike Back Lights, Real 900 Boost USB Rechargeable Bright Bicycle Light

Features & details - High Brightness & Daytime Visible - This backlight set offers bright lumens to make sure you're visible and avoid accident during daytime and nighttime riding; - Multi-ply Applications - You can mount these rear lights to be seen on your bicycle seat pole, electric scooter handlebar or on your helmet, your camping bag and etc; - Red&Blue Colors with Various Modes to be Seen- Armed with Red steady, Blue steady, Red-sharp flash, Red SOS, Blue-sharp flash 5 lighting models, continuous working time lasts from 15-20 hours; - USB Rechargeable, Easy Installation