【Two Mounting Options】This taillight comes with a bracket and a silicone case: the bracket can be attached to the bike frame, rear wheel spokes, a basket, or any other attachment point. The silicone case attaches to the handlebars or seat post. It can also be mounted on electric bikes, scooters, helmets, pets, backpacks, or any other support of your choice, enhancing safety during your night rides. 【Remote Control and 5 Light Modes】This bike taillight is wirelessly controlled via a remote control. Once turned on, simply press one of the three buttons on the remote to easily change the light mode. Five modes are available: right turn signal, left turn signal, solid red, flashing red, and continuous red. You can adapt the mode to your needs and the situation to effectively signal your presence to other road users. 【Taillight and Turn Signals】The bike turn signals use 32 high-brightness SMD LEDs with a 180-degree beam angle, ensuring optimal visibility up to 45 meters (150 feet) even in rain, fog, day or night. The left and right turn signals are activated wirelessly with an audible signal, alerting the cyclist and ensuring their safety. [Horn and Remote Control to Find Your Bike] Our taillight is equipped with a horn, providing better signaling when changing direction. In parking lots, you can easily find your bike by remotely activating the horn and turn signals, for increased safety and greater peace of mind during your rides. [IPX4 Waterproof, USB Charging] Thanks to its IPX4 waterproof rating, this taillight works perfectly in rain and fog. This bike turn signal has an integrated battery and comes with a charging cable, allowing it to be charged via a computer, external battery, or any device equipped with a 5V USB port.