Rockbros Bicycle Light Usb Rechargeable Tail Light Led Warning Rear Lights

Rockbros Bicycle Light Usb Rechargeable Tail Light Led Warning Rear Lights Product Description   Remote control use CR2030 battery (Normal can be used 1 year)   3 Mode Lighting:Red light ,Yellow turn signal,Red laser light   Features:   Remote control, key to switch Various warning lights state Built-in rechargeable battery No need to change batteries frequently USB charging,Waterproof          ​Use time: Always Light Mode about 4-4.5 hours                Flash Model about 8 hours                 Charge time:about 4-5 hours