<p>Sound and light alarm The door magnet emits a 140 decibel alarm sound + LED light flashes for </p> <p>Ultra-long standby and long battery life Energy-saving and power-saving standby for up to one year</p> <p>Alarm principle When someone opens the door or window illegally (the host and the magnetic strip are separated), the alarm immediately emits a alarm sound</p> <p>6 major functions: volume adjustment, light reminder, anti-theft mode, beep mode, welcome mode, SOS mode</p> <p>Wide application scenarios: home, hotel, rental house, children climbing , drawer anti-theft</p> <p>Volume: 140 decibels</p> <p>Remote control distance: equal 25m (open space)</p> <p>Door sensor standby time: about one year</p> <p>Remote control standby time: about one year</p> <p>Colour:White</p> <p>Material:ABS</p> <p>Package Contents:</p> <p>1x Door Magnet</p> <p>1x Magnetic Stripe</p> <p>2x Remote Control</p> <p>2x AAA Batteries</p> <p>1x Instructions in Chinese and English</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>