• Wireless Remote Control: The remote control matches the tail light. If you want a rematch please turn on the tail light and the remote control at the same time and press for three seconds
• USB Rechargeable: Built-in 1200mAh rechargeable battery to meet daily needs
• Safe Night Riding with Loudspeaker: Loudspeaker to remind passers-by (It only makes a sound when turning left and right)
• Wide Adjustable Angle: Tail light can be adjusted up and down 45° to ensure a safe viewing angle
• IPX4 Surface Waterproof: Rainproof. (Note: Please make sure to close the USB interface and don't soak it in the water)

Specifications:

• Brand: WEST BIKING 
• Battery: 1200mAh rechargeable battery
• Shell: ABS
• Charging time: 2 hours
• Size: 10 x 3 x 4.5cm
• Weight: 60g
• Operating time: 9.5 hours