[Motion Sensor Working Smartly]: W08 warning tail light works intelligently after turned on. It'll light on when it detects the motion status and light off when it detects the motion stops for 2 minutes.

[Clip at the Light Back]: Conveniently clip it on clothes or hats, use it when you're running, jogging, hiking, camping, etc.

[Light Reflectors on the Lens]: When it is powered off or out of battery, it can still reflect the lights from other vehicles to ensure safety.

[Daytime Warning + 5 Modes]: W08 warning tail light has 5 modes switchable, high brightness 10lumen. Unique daytime warning mode makes your cycling safer during the day.

[500mAh Li-battery + 60h Runtime]: Built-in 500mAh Li-battery, longest working time can be 60 hours.

[USB Rechargeable + Charging Indicator]: W08 warning tail light is USB rechargeable, and has charging indicator inside.

[IPX6 Waterproof]: IPX6 enabling normal cycling in rainy days.