1. Remote control turn signal lights: Easy to install. A lightweight and durable bicycle taillight that can be installed on all bicycles, including children's bicycles and adult bicycles. It can also be used as a helmet light, backpack light, warning light, etc. 2. Set your own lighting mode: There are 5 lighting mode options: right turn, left turn, red steady, red - blue flashing, and full - bright flashing. You can switch modes according to your needs and different occasions to get the best lighting experience and ensure safety. 3. The turn signal lights can be charged via USB. The red light will turn green when fully charged. It can be used for 4 - 6 hours after 1 - 2 hours of charging. The battery of the remote control can be easily replaced with a CR2032 battery. 4. Waterproof bicycle taillight: The taillight is made of waterproof materials to ensure safe use in rainy days. 5. What are the specifications of the handlebar taillight? - Material: Plastic - Brightness: 10 - 15 lumens - Light beads: 4 blue LEDs / 5 red LEDs / 28 yellow LEDs - Lighting modes: right turn, left turn, red steady, red - blue flashing, full - bright flashing (press the 2 rotary buttons for 3 seconds) - Light battery: Built - in 500mAh rechargeable battery - Remote control battery: CR2032 (replaceable) - Light charging time: 1 - 2 hours (the red light will turn green) - Working time: 4 - 6 hours - Dimensions: 12.2 * 4cm * 4cm - Weight: 155g 6. What will you get? - 1 x Bicycle turn signal light - 1 x Remote control with mounting base - 1 x USB cable - 2 x User manuals 7. Note: - When installing the taillight, make sure the power button is inverted. - When installing the remote control, make sure the remote control is in the correct position.