General description: This wireless doorbell and entry alarm system is equipped with a motion detector, making it ideal for shops and homes. It offers a communication range of up to 100 meters between the infrared sensor and the receiver. With 38 different ringtones, you can greet your guests in a personalized way. The sensor detects motion within a range of 3 to 7 meters vertically and 3 to 5 meters horizontally, making it a perfect choice for windows, doors, and garages. Technical specifications Communication range: up to 100 meters Sensor range: 3 to 7 meters (vertical) and 3 to 5 meters (horizontal) Receiver dimensions: 76 x 80 x 33 mm Sensor dimensions: 80 x 59 x 45 mm Sensor power supply: 3 AAA batteries or 5V USB power supply (not included) Receiver power supply: DC 110V - 240V Volume control levels: high, medium, silent Alarm modes: ringtones + LED display Compatibility and accessories Package contents: 2 sensors, 1 receiver, 1 mounting kit, 1 user manual