Super Bright Bike Turn Signal: 39 high brightness LED bulbs, up to 100 lumens output, the brightness is enough to see 150ft away in foggy/rainy day or even dark night. Remote control without Wired: Install a remote on the front of the bike and easily control the bike's rear light to send different signals via three easy-to-use buttons on the wireless remote. Wide Uses: Suitable for all types of bicycles: mountain bikes, road bikes, touring bikes, racing bikes, etc. Easy to Control: Right/left turn signal, hazard and warning lights to ensure your safety in traffic. USB Charging: Built-in large capacity rechargeable battery, it can work in flashing mode for up to 10 hours after being fully charged, durable and eco-friendly. It can be applied to a variety of charging methods, such as laptops, car chargers, mobile phone chargers, mobile power supplies, etc. Compact size. Lighting that does not take up much space. Using the most convenient USB charging method, you can still charge the battery without having to carry a extra battery. Colour: Black Size: 12.2*4cm Delivery Quantity: 1 Piece