LAOPAO Bicycle Tail Automatic Smart Brake Vibration and Light Bicycle Rear Smart Dail Road Cross Up to 50 Hours of Continuous High Brightness IPX6 USB

[Synchronization function] Equipped with a synchronization function with new technology. Double-click the switch to enter synchronization mode, and click again to exit synchronization mode. In synchronization mode, connect multiple tail lights with synchronization function to synchronize breathing flashing every 5 seconds. Give momentum to team rides and increase the fun of riding. [Smart Brake Warning] Equipped with an intelligent brake warning for all road conditions, when you brake, it will light up at maximum brightness for 3 seconds in any mode, showing your presence to the rear vehicle and keeping you safe. It notifies surrounding drivers and pedestrians of the presence of the bicycle, increasing safety and preventing accidents. It is the first choice for professional cycling users. [Automatic lighting & light/vibration sensor] The bicycle tail light has a built-in light sensor and vibration sensor, and can automatically turn on depending on the brightness of the light. In smart mode, it will automatically turn on/off depending on the brightness of the environment. In addition, when vibration is detected, the tail light will automatically turn on for 30 seconds, and about 30 seconds after parking, the tail light will automatically turn off. [Brightness adjustable and four lighting modes] You can choose from four lighting modes: slow flashing, breathing flashing, fast flashing, and constant lighting. Click the button to switch the lighting mode. Automatically remembers the mode before turning off. When the power is off, you can press and hold the button to adjust the brightness to high/medium/low. [Type-C rechargeable & low power warning] Built-in large-capacity lithium battery, maximum lighting time is ≧65H (low brightness). No need to worry about running out of battery in a short time. Type-C charging port, you can charge it anywhere, such as at home or outdoors. When the blue indicator flashes, it warns you of low power. Please charge it as soon as possible. It lights up red while charging. It will turn off after about an hour of full charge. [COB LED + Optical Lens + IPX6 Waterproof] The combination of PC lens and COB LED allows the light to penetrate softly and the visible distance exceeds 100 meters! Achieves 260° wide-range visibility, attracting attention not only from behind but also from the left and right while riding. Reaches the IPX6 waterproof standard, has waterproof, dustproof and vibration-proof performance, and is reliable even in bad weather. Achieves a weight reduction of only 19g. Comes with a silicone holder that can be used with seat tube diameters of 22mm to 35mm, easy to install, has two types of installation methods, and can be used with most vehicle models. Auto lighting + Smart brake warning + Light sensor