Wireless doorbell/entry alarm system with motion/access detector, 38 ringtones, up to 70m range, white

The communication range between the infrared sensor and the receiver is up to 70 meters (fair game). It features 3 volume control levels: high, medium, and silent; and 2 alarm modes: ringtones + LED display and LED display only. There are a total of 38 different ringtones to welcome your guests. The sensor's range is 3 to 7 meters vertically and 3 to 5 meters horizontally. Receiver dimensions: 76 x 80 x 33 mm; sensor dimensions: 80 x 59 x 45 mm. This alarm system is perfect for windows, doors, garage doors, or other openings, and therefore integrates seamlessly into homes or shops! Sensor power supply: 3 AAA batteries or 5V USB power supply (not included); Receiver power supply: DC 110V - 240V.