STOP LIFTING YOUR ARM TO SIGNAL YOUR DIRECTION - With just a thumb, indicate your direction and be visible up to 100 meters away thanks to the ultra-bright LEDs. In addition, the integrated sound signal alerts other road users and pedestrians to your presence. Other road users can anticipate your lane changes and hear you from a distance for your own safety; 5 LIGHT MODE OPTIONS - turn right and left with 120dB audible turn signal, red light always on, red light flashing or all flashing. You can change the different signaling modes according to your needs; EASY TO USE AND EASY TO INSTALL - Its quick-release fastener allows you to install the turn signals and remote control in less than 30 seconds. adapts to all types of seatpost or luggage carrier. Only 3 buttons for easy operation and to minimize reaction times. Press, Flash, Turn; RECHARGEABLE AND WATERPROOF - Built-in large capacity battery, charge your taillight with turn signals via USB, quickly and easily from your computer or other charging methods. All cables included. Ride even in rainy weather without stress, our system is waterproof thanks to IPX4 certification; WIRELESS REMOTE CONTROL - The wireless remote control installs on the handlebars of your e-bike or scooter in seconds, you can easily activate the signals by pressing the corresponding button. Is equipped with a cr2032 battery (not included) with an autonomy of more than 200 days;