Description Function: 1. MINI DOORBELL RECEIVER: This receiver comes with high-power speakers, 38 music options, adjustable volume, and mute mode, allowing you to customize the doorbell to suit your needs. 2. WIRELESS CONTROL: The extra-long wireless range of 100 m ensures that you never miss guests, even if you have people outside several rooms or on another floor, in your garden, kitchen or basement. 3. 360 ROTATION: The transmitter adopts infrared probe, with universal 360 degree rotation and 120 degree detection area, with detection distance from 3 to 7 meters. It is IP65 waterproof, with deep waterproof groove and strong waterproof cover. 4. WATERPROOF TRANSMITTER: Designed with fully sealed waterproof good protection, with water resistance up to IP65, easy to withstand various adverse weather conditions and can be used outdoors. 5. EASY INSTALLATION: Simply plug the mini receiver into an outlet and attach the transmitter to your door or wall. Installation is very simple and can be done in less than a minute. Take advantage of our easy-to-use wireless doorbell to say goodbye to wiring and installation hassles. 6. APPLICABLE SCENARIOS: The doorbell is suitable for villas, senior rooms, children's rooms, warehouses, vehicle access, safety areas, outdoor areas and pet access areas. Specification: Item Type: Driveway Alarm Material: ABS Voltage: 110-240 V Transmitter battery: AAA x 3 battery (supplied without battery) Working range: approx. 100 m / 328,1 ft Infrared range: approx. 7 m / 23 feet Degree of protection: IP65 List of packages: 1 x emitter 1 x Receiver 1 x Universal Support 1 x Universal Head 1 x Manual 2 x Screw 2 x Expansion Tube