Maximum Detection Distance: 140m (153 yards) Viewing Angle: 220 degrees Horizontal Detection Angle: 40 degrees Detectable Targets Speed: 10-120 KM/H Auto-sleep/Auto-wake: yes Weight: 90g Size: 41.5x100x21mm Compatible Smartphone: Android 4.2 and above, IOS 8.2 and above Charging Port: TYPE-C Waterproof Grade: IPX6 Working mode & battery life of our W100 bicycle radar tail light: 1. Single radar mode (over 24 hours) : tail light off, radar on, loudspeaker off (Light is off when no vehicles. Light flash while vehicles are approaching from behind and graphic of vehicle trajectory display on smartphone APP and bike computer. Loudspeaker is off work) 2. Single taillight mode (over 24 hours) : tail light pulse flashing, radar off , loudspeaker off (Light keeps pulse flashing. Radar and loudspeaker are off work) 3. Solid mode (14 hours) : tail light always-on, radar on, loudspeaker off (Light keeps on. Light flash while vehicles are approaching from behind and graphic of vehicle trajectory display on smartphone APP and bike computer. Loudspeaker is off work) 4. Flash mode (18 hours) : tail light pulse flashing, radar on, loudspeaker on (Light keeps pulse flashing. Light flash while vehicles are approaching from behind and graphic of vehicle trajectory display on smartphone APP and bike computer. Loudspeaker rings.) 5. Standby mode: 3 months Color:Black Material:plastic Package Contents: 1 * Bicycle Radar Tail Light 1 * accessories set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.