Super bright bike turn signals at day and night: 22pcs high brightness imported LED beads,80 lumens,ultra-high visibility.Effectively improve cycling safety in bad weather,dark environments and complex road conditions.Control via wireless remote control,simple to use.Upgrade 6 modes: Left/right turn signal (with horn sound),constant red light,high-bright flashing red light,red&yellow light flashing,low-bright flashing red light.In order to lower the volume,our bike tail light adopts 70decibel horn,effectively alerting pedestrians and vehicles on the road.You can also confirm that the turn signal is successfully turned on through the sound.Longer remote control range: Straight-line,barrier-free remote control distance about 43ft,convenient to operate.Waterproof bicycle rear light to ensure daily use, please make sure the USB port is closed before use and please do not soak the bicycle indicator lights in water.USB rechargeable bicycle tail light: It can be charged from a power bank,laptop or any device with a USB port.Build in 700mah large capacity battery,keep running for 330 minutes after fully charged (depends on the light mode).Wide application wireless bicycle turn signals: Light weight,comes with installation accessories,can be easily installed under the saddle/on the tube of almost all type of bikes or other suitable installation position,such as electric bikes, scooters, tricycles, motorcycles, etc.