Bike light is made of ABS , durable to use. directional flashing indicates travel safety factor is greatly enhanced.4-IN-1 REMOTE CONTROL BIKE TAILLIGHT: Taillight, brake light, anti-theft alarm, bike . It has 5 light modes: Slow Flashing-Breathing-Blinking-Steady Light -OFF be by remote control. wireless range about 98ft-196ft. Easy to search you vehicle by press the button on the remote.POWER-SAVING ON/OFF: In the intelligent mode( Slow Flashing/ Breathing) , the light is automatically turn on or off according to the brightness. In the dark, if you stop for more than 30s, it will auto urn off to save power; if you again, it will automatically .VIBRATION ALARM: Anti-theft bicycle alarm triggered by vibration, up to 110db LOUD alarm, effectively to scare off thieves and attract people's attention. 7 levels adjustable sensitivity from gently touch to or beat.Colour:black: ABSPackage Contents:1 x tail light1 x remote control1 x USB cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.