WSDCAM Anti-Theft Alarm for Bike, Motorcycle & Vehicle - 110db Loud, Wireless Vibration Alarm with Remote Control (2Pack)

The factory default highest sensitivity (the first level). Setting the sensitivity you can do the following operations:
1. Press and hold the Disarm key of the remote control (Ignore the prompt tone). The remote control's LED turns off for about 3 seconds and lights up again after 3 seonds, then release the Disarm key and press the doorbell key to adjust the sensitivity level.
2. When it's in the highest sensitivity, the alarm will sound a long "Bi......". Press the doorbell key once, the sensitivety level turns to the next level and the alarm sound a short "Bi......". When it's in the tenth level, if press one more time, it turns to the first level. The higher the level the less sensitive.

Host 2AAA alkaline batteries to operate ( not included )
An 12V/27A alkaline batteries of the remote control to operate
Installation:
Select windows and doors to the installation location, with water and cloth to clean the mounting surface, the double-sided adhesive tape on the bottom and then this machine is attached to the clean position
Application Function:
Arming and disarming
Alarm triggered
Emergency functions
When you are at home when you encounter an intruder or other emergency situations, the remote control [flash] is pressed on the key host will ring alarm.
Emergency function keys are valid in any mode.
Doorbell function
Increase the remote control and alarm
You can increase the remote control and alarm depending on your needs see the instruction set