Wsdcam Wireless Vibration Alarm with Remote Control Anti-Theft Alarm Bike/Motorcycle/Vehicle Security Alarm, 110db Loud, Door and Window Alarm

Wireless vibration alarms with remote by detecting gentle touch, push or beat (vibration triggered)Remote control range up to 25M10 levels adjustable sensitivityAdd more remotes and alarms. You can program multi remotes for one alarm, also can program one remote for multi alarms.Low-consumption design,which makes it can work at least a yearAlarm need two AAA batteries to operate ( not included )Remote need a 12V/27A alkaline batteries to operate ( included )4 Mode-- Arm/Disarm/Panic/Doorbell modeNot only a safety/antitheft alarm, but also a Doorbell, in doorbell mode, the vibration alarmdetects vibration the host sound"Dingdong"Low battery warningPackage Size: 4.2*2.5*1.5 inch, Package Weight: 71gArm key: Press it, once triggered, alarm will bell 110db voice.Disarm key: Press it, the arm status or loud voice will stop.SOS key: Press it, the alarm will bell 110db voice though alarm is not triggered. This function will be very helpful when someone is in danger or need emergent help.Doorbell key: Press it, once triggered, it will bell "dingdong" to alert you someone is coming in.