By remotely controlling the smart turn signal, you can send a left or right turn to the vehicle and brake light signal to safety. Can be used as bicycle lights: skateboard lights, night lights, bicycle helmet lights or children's self-safety warning electric lights and car accessories. Turn signal button: the left turn signal button on the remote control to turn it on, and it again to turn it off. If the left turn signal button is not turned off in time, the turn signal automatically cancel the turn display after one minute. The right turn signal is the same as the left turn signal button. This taillight accessory has clear brightness and is suitable for mountain bike accessories, -country motorcycle accessories, dogs or skateboard tools, etc. This bicycle light set uses very bright LED lights, which are very conspicuous in the dark. Waterproof: This product has a waterproof rating and can be used in , but please do not soak in water. colour:Black Material:Aluminum alloy size:88 x 19 x 30mm Package Contents: 1 x Bicycle turn signal 1 x remote control 2 x bracket 1 x usb line Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing.