*Melodies: 38 Kinds Musical Tones for Selection*Receiver operating voltage: 200-240V(NOTE: Only applies to the voltage of 200-250-V country， does not apply to the United States and Canada， 110V voltage country， please confirm clear before buying， thank you.)*Plug type: US Plug*Remote control powered by: 1 x 12V/23A battery (Not included)*Material: Plastic*Size of doorbell: 92 x 60 x 27mm (L x W x H)*Size of remote control:78 x 40 x 15mm (L x W x H)*Color: As the pictures shownQuantity:1 Sett