Bicycle Wireless Laser Tail Light Bike Turn Signal Remote Control Safety LED Warning Taillight USB Rechargeable Rear Light Features: Wireless remote control, easy and convenient for outdoor cycling. Picture display, support parking and direction turning functions. Laser light, USB rechargeable, easy to charge at outdoors. The light can work up to 10 days when it is fully charged. Easy installation, time and effort saving. Necessary warning light to keep you and passengers safe at night. Description: Working mode: turn on or off the light by the power button on light body while dot matrix display kinds of riding signal or turn left/right /stop by pressing the steering button on controller LED: dot matrix display and two laser light Light Battery: 3.7V 650MAH rechargeable Li-ion battery Controller Battery: 1*CR2032 battery, work for about 3 months Brake Launcher Battery: 1*CR1225 battery, work for about six months Installation: controller fixed on cycle handle bar, while tail light fixed under seatpost Specifications: Model: T603 Material: ABS Color: black Size: Controller：5.5*2CM, Light Body：7.5*5.5*2CM Package Included: 1 x Tail Light 1 x Controller 1 x USB Cable 1 x Ring Shape Installation Accessory 1 x Tail Light Base 1 x Controller Base 1 x Installation Kit 2 x Nylon Strap 1 x Battery CR2032 1 x Ring Shape Installation Accessory Pad Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Due to different personal measuring techniques, there might be 1-7cm error of the physical. Thank you!