Ultra Bright Bike Turn Signals: 39 high brightness LED bulbs, bright enough to be seen from 7m away on foggy / rainy day or even dark night.IPX4 waterproofing: The IPX4 waterproof level can be used in light to moderate rain at a temperature of - 20 to 60 C - your best partner for outdoor cycling.Wireless Remote Control: Install a remote control on the front of the bike, easily control the bike tail light to send different signals with the three easy-to-use buttons on the wireless controller.Many possible uses: Suitable for all types of bikes: mountain bike, road bike, touring bike, racing bike, etc. Easy to control: right / left turn signals, emergency and warning light, for your safety in traffic.USB Rechargeable: Built-in large capacity rechargeable battery, can work in flashing mode for up to 10 hours after being fully charged, durable and environmentally friendly. Can be suitable for a variety of charging methods, such as laptops, car chargers, cell phone chargers, power banks, etc.