Waterproof Bike Tail Light with Turn Signals USB Rechargeable Wireless Remote for Mountain Road Bicycles Features： 1、Wide Application: Ideal for installation on mountain bikes, road bikes, city bikes, etc. With loud speaker to effectively alert passersby. 2、Adjustable: This rear bike light has a viewing range of 270 degrees and can be angled to your needs for the best view. 3、Remote control: This bike tail light with left and right turn signal can be turned on by remote control with three modes: red light, flashing red light and full flashing. 4、Durable: The light is shockproof, waterproof and not easy to fall off,so you are not afraid of rain or other harsh environments. 5、USB Rechargeable: Built in large capacity battery, it can be used for a long time, and can be charged through USB cable, so it is very portable. Specification： Item Type: Bike Tail Light Material: ABS Color: Black Features: Wireless remote control steering Battery Type : Lithium polymer batteries Battery Model : 103450 Battery Nominal Capacity: 900mah Remote Control Battery Type: Button battery Remote Control Battery Model: 2032 battery Remote Control Battery Nominal Capacity: 240mAh Package List： 1 x Remote control  1 x Turn Signal 1 x English and Chinese Manual  1 x Data Line 2 x Ring Covers 1 x Fixed Strap