1. Bicycle Turn Signal: Our smart bicycle taillight comes with a turn signal, equipped with 38 high-power LED beads, up to 60 lumens output, bright enough to be seen within 150 meters in fog/rain/even during the day. This bicycle taillight also comes with a horn buzzer, which can effectively alert the rear vehicle. 2. Easy to install: Designed to be attached to the front and rear of the bicycle, it can be used in combination or separately, this warning bicycle taillight is suitable for mountain bikes, road bikes, off-road bikes, off-road vehicles, scooters, etc. 3. Wireless Turn Signal: Equipped with a smart remote control device, you can easily control the bicycle turn signal, there are 5 modes: left turn signal/right turn signal/red light/yellow light/full light flash. 4. IPX44 and USB Rechargeable: IPX44 bicycle rear light is more convenient to drive in rainy days, foggy days, bad weather or when crossing puddles. Built-in 600mAh capacity battery, can be quickly charged through the USB interface, fully charged in 3 hours, can reach 5 hours of ultra-long battery life, so you don't need to worry about battery exhaustion