LED bicycle turn signalFirst, the specifications 1. Wireless remote control steering dot matrix display, wireless remote control cool graphic tail light, wireless remote control laser parallel line 2. The battery uses 3. 7v 650mAh lithium electronic rechargeable battery, working for 10 hours on one charge. 3. The remote control uses the CR2032 section, which can be used for three months. Second, the operation guide 1. Press and hold the main switch for 1 second to turn it