USB OUTPUT - It can charge your mobilephone and other USB tail light , So your electronic device on the bike has a steady stream of solar energy .
INTEGRATED THE HORN - 5 sounds , 140 dB loud Speaker , Long press 5 seconds to change bell sound .Very Loud .
BUILT IN BATTERY - Solar energy generation & USB rechargeable (USB input),Built-in 2000mAh high quality rechargeable lithium battery , Safe and Efficient .Waterproof ,rainproof, No worry about rain .
FRONT BIKE LIGHT - Max 350 lumens (Effective distance 600ft), 4 Mode and Light perception control, automatically open and close according to the light brightness, Click button to change mode.
TAIL LIGHT - USB rechargeable, 4 mode, waterproof, Horizontal or vertical installation, Up and down 45 degree angle adjustable, Easy to install and remove.