describe 130dB Loud AlarmThe door access sensor has a 130dB alarm, when someone opens the door or window, the door alarm will emit a loud alarm sound, which can be heard throughout the house, which can effectively deter thieves and protect your home safety. With 1 Remote ControlWireless door alarm comes with 1 remote control, you can use it to complete the arm/disarm/doorbell/SOS mode, the maximum control distance is 25m without interference, powered by a CR2032 battery, standby time Up to 1 year. Easy to use and installThe door alarm is easy to install, no wiring required, you can stick the door sensor alarm on one side of double-sided tape, then stick the tape on both sides of the door and window, the door sensor is powered by 2 AAA batteries With 3 Alarm Modes The door and window alarm system has 3 alarm modes, namely doorbell mode, anti-theft mode and reminder mode. They can make ding dong, alarm and beep sounds, and the LED lights will flash at the same time, and you can choose the corresponding mode according to your daily needs. Wide Applications Door and window anti-theft alarm has very rich application scenarios, it is very suitable for home, business, apartment, hotel room, garage, RV, travel, bathroom, swimming pool safety and child safety, it can effectively prevent you and your family lose.