Features: USB Charging: Built-in 700mAh battery, safe and stable, long battery life, fast charging speed, can be connect to mobile power charging. Daily Waterproof Rating: Daily waterproof rating, can resist rain and humid climate, can be used normally in rain, suitable for outdoor riding. LED Bike Taillights: 39 high brightness LED lamps beads with a biggest output of 80lumens. This lamps can meet most of the visual warning needs during riding. USB Rechargeable and Tweeters: Cycle indicators light with turn signal bike indicators SMDlights, and bright enough to be seen in foggy/rainy day or even in dark night. Wireless Remote Control: Smart bicycles tail light with turn signal is a wireless control system installed on the bicycles; The functions of the tail light can be easily controlled. Specifications: Material: ABS Color: As The Picture Shows Package Weight: approx.70g Light Size: approx.9.5x3.5cm/3.74x1.37in (More Size Detail, Please See Photo.) Package Includes: 1 Set of Bike Turn Light note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!