oenbopo Safe Cycling Bike Bicycle Turn Light Rechargeable Tail Light, LED Turn Signal Waterproof Safety Bicycle Rear Light Left/Right/Brake with Wireless Remote Control for Bicycle or Motorbike Safe Cycling Helper!Bike Bicycle Turn Light Laser Tail Light Left/Right/Brake Rechargeable Multifunctional Turn Light Main function: Lighting, warning, security, etc 1. Remote Control: Turning by the dot matrix display/ Cool pattern display of the tail light/ Brake indication by the dot matrix display/ Laser parallel 2. Powered by 3.7V 650mAh li-ion battery, continuous working time long to 10 days after each charge