【Wide Application】--- The overall size of the alarm is 93*45*19mm/3.66*1.77*0.75in, the waterproof level is Ipx-4, and the alarm volume is 120 decibels, which can be widely used in motorcycles and scooters, battery cars, bicycles, vehicles, doors and windows, etc. 【USB CHARGING + EASY TO USE 】--- Charging via USB, wireless alarm charging time is 2-3 hours. The normal standby time is more than 30 days, and it can be used normally for about 15 days. The installation method is very simple, no wiring is required, and it can be fixed in any position with the sticker on the back. We also provide 2 plastic cable ties to help you secure it more. 【4 Modes + 5 Sensitivity Levels】--- The remote control has 4 modes, namely arm/disarm mode /panic/doorbell, and the remote control range is up to 80m/262.46ft. It also has 5 adjustable sensitivity levels that you can easily adjust according to your needs. [Blue and Red LED] --- The wireless alarm is also equipped with blue and red LED. Red: The red light is always on and the blue light is flashing when charging, and the red and blue light is off when charging. is saturated. [Adaptation learning code function] --- One wireless alarm can be adapted to 5 remote controls, and one remote control can control multiple wireless alarms at the same time. Note that the remote must adapt and learn to be used by a one-to-many multi-person control.