The communication range between the infrared sensor and the receiver is up to 70 meters 3 volume controls: high, medium, low; 2 alarm modes: ringtones + LED indicator and LED indicator. There are a total of 38 different ringtones to greet your guests. The range of the sensor is 3-7 meters vertically and 3-5 meters horizontally. Receiver dimensions: 76 x 80 x 33 mm, sensor dimensions: 80 x 59 x 45 mm. Perfect alarm system for windows, doors, garage doors or the like and therefore fits into the house or shop! Sensor power supply: 3 AAA batteries or 5V USB power adapter (not included), Receiver power supply: DC 110V - 240V. Specifications: Communication range between sensor and receiver: 70 meters (fair game) Sensor range: 3 to 7 meters Dimensions: Sensor, 80 x 59 x 45 mm, Receiver , 76 x 80 x 33 mm Scope of delivery: 1x sensor 1x receiver 1x mounting accessory kit 1x operating instructions