By remotely controlling the smart turn signal, you can send a left or right turn signal to Compatible withdonet and a brake light signal Compatible with increased safety. Can be used as bicycle lights: skateboard lights, night lights, bicycle helmet lights or children's self-protective warning lights and car accessories. Turn signal button: press the left turn signal button on the remote control Compatible with to turn it on and press again Compatible with to turn it off. If the left turn signal button is not turned off in time, the turn signal will automatically cancel 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 Compatible with mountain bike accessories, cross-country motorcycle accessories, dogs or skateboard tools, etc. This bicycle light set uses very bright LED lights, which are very eye-catching in the dark. Waterproof: This product has a waterproof rating and can be used in, but please do not soak it in water. Color: Black Material: Aluminum alloy Size: 88 x 19 x 30 mm Compatible with package contents: 1 x Bicycle turn signal 1 x Remote control 2 x Bracket 1 x USB cable Only the above Compatible with package contents, other products are not included. Note: Light and different monitors may cause the color of the product in the picture to differ slightly from the real item. The allowed measurement is +/- 1-3 cm.