[Wireless Motion Sensor Alarm]<br> Includes 1 receivers and 2 transmitters, with 3-7m/ 9.8-22.9ft effective detection range, 120 detection angle, can effectively detect movement in surrounding areas and trigger alert to the linked receiver.<br> [Large Wireless Transmission Distance]<br> Signals with b penetration force can be sent to the receiver more than 200m/ 656ft away to warn you, providing security for your property and loved ones.<br> [IP52 Waterproof]<br> With large waterproof cover and deepened groove, no fear of rainy days, suitable for outdoor use, widely applied in front doors, window frames, driveways, walking paths, shops, garage, and more.<br> [38 Chimes Optional]<br> There is always one chime you and your family love; with built-in high-quality speaker, low power consumption, 4 levels of adjustable volume, no worry of that you can't hear the ringing.<br> [Power Supply]<br> The receiver can be easily plugged into a standard outlet inside your home, and the transmitters are powered by 3 * AAA batteries (not included), convenient for placing them at the entrance to your driveway.<br> Specifications:<br> Color: Black<br> Material: ABS<br> Detection Angle: 120<br> Detection Range: 3-7m<br> Transmission Range: 200m (without obstacles)<br> Frequency: 433MHz<br> Ringing Tones: 38<br> Power Supply of Transmitter: 110-240V plug<br> Power Supply of Receiver: 3 * AAA batteries<br> Transmitter Size: 8.5 * 8 * 2cm/ 3.3 * 3.1 * 0.78inch<br> Receiver Size: 8 * 8 * 5.5cm/ 3.1 * 3.1 * 2.1inch<br> Package List:<br> 2 * Transmitter<br> 1 * Receiver