•Remote control, easy to use •The alarm volume is as high as 130dB, scaring away thieves •Easy to install. Use double-sided tape to install on windows or doors without any tools •Suitable for doors, windows, cabinets, safes; homes, shops, businesses and other anti-theft alarm places 4 Function Keys, Easy To Set: •Alarm-Long press the button to make a "Di" sound when the door is closed, which plays a defensive effect. •Cancel-Press the button to cancel. •Function-Press to change the alarm sound, "jingle, alarm and Di" are available. •SOS-Press to sound a loud alarm to survive or ask for help. How To Install: •1. Open the battery compartment and install the AA battery. •2. Stick the alarm on the door and frame. •3. Pairing: Long press, then the indicator light turns on, and then press any button on the remote control to make a didi sound, which means the pairing is successful. Specification: •Transmission frequency: 433.92 MHz •Environmental humidity: 90% •Working humidity: -10-60 degrees Celsius •Sound pressure: 130 dB •Remote control distance: 15m •Electromagnetic door induction range: 15mm •Magnet standby time: more than 1 year •Remote standby time: more than 1 year •Material: plastic •Alarm size: 9.0 * 4.3 * 1.3cm / 3.5 * 1.7 * 0.5in •Magnetic stripe size: 4.5 * 1.3 * 1.3cm / 1.8 * 0.5 * 0.5in •Remote control size: 6.0 * 3.3 * 1.1cm / 2.4 * 1.3 * 0.4in Package included: •1 x Door Sensor •1 x Magnetic Stripe •1 x Remote Control •1 x Double-sided Tape •1 x Manual