Smart brake sensing tail light reminds the rear vehicle with high brightness to ensure the safety of riding. Support a variety of lighting modes, manual and intelligent one-key switching, easy to use.<br/>Features:<br />Sensitive Braking: Built-in high-precision sensor, with depth algorithm, even a slight brake, the taillight can quickly detect. Brake can enhance brightness to remind the rear and make riding safer.<br />High Brightness LED: The lens is designed with a special principle and is matched with 24 high-quality LED lamp beads to create a high-brightness and soft and non-glaring lighting effect.<br />Multiple Lighting Modes: The taillight supports always on, breathing light, slow flash, fast flash, rhythm flash and energy-saving flash. Manual and smart mode can be switched with one key.<br />USB Charging: Built-in 400mAh battery, low power consumption design and long battery life. With USB charging port, it support PC/laptop, power adapter or power bank charging.<br />Durable &amp; Reliable: Made of high quality ABS, the light is sturdy, durable and anti-fall. IPX4 waterproof and dustproof, not afraid of the influence of bad weather such as rain days.<br/>Specifications:<br />Color: Black<br />Material: ABS<br />Light Source: LED<br />Battery: Built-in 400mAh Lithium Battery<br />IP Level: IPX4<br />Item Size: 44 * 34 * 34mm/ 1.7 * 1.3 * 1.3in<br />Package Size: 130 * 77 * 44mm/ 5.1 * 3.0 * 1.7in<br />Package Weight: 71g/ 2.5oz<br/>Packing List:<br />1 * Tail Light<br />1 * USB Cable<br />1 * Seat Bracket<br />1 * Seat Post Bracket