barsku Smart Bicycle Tail Light Auto on/Off Brake Sensing Bike Tailights USB Rechargeable IPX6 Waterproof LED Flashing Bike Rear Lights High Intensity Cycling Safety Taillight Fits Any Bikes

Features: 1. 3 Lighting Modes and Automatic Wake-up: Fast / 50h, breathing flash / 30h, constant lighting mode / 25h (for bicycle tail lights) 2. IPX65 Waterproof and USB Charging 3. Electronic Indicator and 22 Bright COB Red LEDs 4. Lightweight and One-touch Switch: The bicycle tail light weighs only 55 grams. 5. Easy Installation: Both installation methods are possible and very easy. Description: Material: Aluminum alloy Size: about 3.8 * 3.4 * 3.4cm / 1.5 * 1.3 * 1.3cm Battery: 400MAH rechargeable battery Charging: USB charging interface LED: high lumen COB Function: Intelligent induction, automatic stop and start, brake warning, IP65 high water imitation, power display Package included: 1 * Bicycle taillight 1 * Base 1 * USB cable 1 * Hex tool 1 * Screw 1 * User guide Note: Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 1-2cm differs due to manual measurement.