Years of Big Promotion Donemore Smart Bike Tail Light, Steering Brake Sensing Rear Lights, Waterproof, USB Rechargeable, Ultra Bright LED Warning Back Bicycle Flashlight, Cycling Safety Accessories Features: Multifunctional lighting mode: When the bicycle is in a stationary state and is abnormally moving, the tail lights will automatically flash and sound an alarm to remind the owner or attract the attention of people around. When brake action is detected, the tail lights will immediately light up and flash to caution vehicles and pedestrians behind to slow down or stop the bicycle ahead. When a bicycle turns, the tail lights will flash in a specific way to indicate the direction of the bicycle's turn and improve driving security . Intelligence and Convenience: Equipped with an electric bell, car owners can control the button tosend out a showy bell to remind pedestrians or vehicles to remit attention. Using USB charging tack, it is convenient for users to charge their devices anytime, anywhere without worrying about running out of battery. After a power outage, the device can save previous settings without the need to relocate, making it convenient for users to use again. Lasting: The 1500mAh battery capacity ensures the device's long-lasting patience, meeting the needs of long-term use. IP65 watertight rating: With high watertight performance, it can work normally in rainy or humid environments without worrying about water damage. Material and Design: Made of fine PC material , ensuring that the equipment is not easily aged or discolored during long-term outdoor use. The special design endows the equipment with sun protection and oppose drop capabilities, allowing it to maintain normal caper even in high temperatures and collisions. Wide temperature working range- Working at a wide temperature range of 40 ℃~+70 ℃, the equipment can operate normally within the temperature range of stern cold to stern heat, meeting the needs of different climatic conditions Product Description: Product Name: Bicycle Turn Tail Light Color: Black Material: Plastic Maximum brightness of tail lights: 93LM Watertight grade: IP65 Full battery usage time: standby for 4-8 months Remote control battery life: 30 times a day, can work for 3-5 years Lighting function: Six lighting modes Charging interface: USB-C Battery capacity: 1500mAh Product size: 12.5x3.3x9.7 centimeters (4.92x1.30x3.82 inches) Packaging size: 13.5x8.6x6.5 centimeters (5.31x3.39x5.56 inches) Gross weight: 260 grams (0.57 pounds) Package Contents: 1x tail lights 1x remote control 1x charging cable 1x tail light bracket 1x hexagonal tool 2x rubber pad 1x screwdriver 4x hex socket screws Product Description: Product Name: Bicycle Turn Tail Light Color: Black Years of Big Promotion Donemore Smart Bike Tail Light, Steering Brake Sensing Rear Lights, Waterproof, USB Rechargeable, Ultra Bright LED Warning Back Bicycle Flashlight, Cycling Safety Accessories Features: