Connected doorbell and videophone - Universal - First ringer, mini wireless doorbell, long distance.(Black) Highlights Universal First ringer, mini wireless doorbell, long distance.(Black) First ringer wireless mini doorbell, long distance Receiver Size: 4.6x2.8x7.1cm Transmitter Size: 3x1.5x6.5cm Receiver Working Voltage: AC 110V-250V Music Choices: 38 Songs Volume: 5 level Receiver Feature 1. Simple plug any which jack 2.Premium audio speaker Indicator light 3.Control button 4.Volume 5.Music back button 6.Music forward button Up to 1000 feet (300m) range wireless Transmitter and receiver size The receiver size: 4.6cm x2.8cm x7.1cm The transmitter size: 3cm x 1.5cm x 6.5cm Only sell the doorbell in the picture, the rest of the goods refers only for sale and not for sale