This multi-functional tail lamp can be switched by wireless remote control, and has the function of vibrations sensing alarm It can switch three lighting modes to effectively enhance the riding safety It is small, portable and easy to install<Br/>features:<br />wireless remote control switching: stable wireless signal, one button switching, easy operation<Br />vibrations sensing alarm: in the alarm state, if vibrations and knocking are detected, the alarm will sound immediately If the vibrations is still detected in 2 ~ 10 seconds, the alarm sound lasts for 30 seconds, and the 130db alarm can effectively prevents theft<Br />three lighting modes: constant bright mode, marquee mode, flashing mode, to meet the lighting needs of different situations<Br />remote control, easy to find a bike: you can remote control your bike lights to send out an electric bell, and you can quickly find your bike at night (Remote control distance is about 15 meters)<br />highlight lamp beads: led highlight red light warning, plays the role of night warning, improve riding safety<Br />built in lithium battery, quick chargings: built in 800mah lithium battery, long lifes, can use usb quick charging<Bar />table adjustable bracket: shockproof, anti-shake, stable installation, multi-stage bracket, adjustable up and down at a large angle<Br />lifes waterproof: able to cope with most of the weather, rainy days can also guarantee the performance (Please fasten the usb plug for daily use, and do not immerse it in water) <br/>specifications:<br />material: abs<br />light battery: 37V, 800mah<br />remote control battery: cr2032: 3v, 240mah<br />light size: 98 x 65mm / 39 X 26In<br />remote control size: 52 x 35mm / 20 X 14In<br />item weight: 110g / 39Ounce<br />package size: 155 x 72 x 40mm / 61 X 28 X 16In<br />package weight: 166g / 59Lb<br/>packing list:<br />1 x tail light<br />1 x remote control <br />1 x bracket<br />1 x usb cable