GeneralType Digital Wireless DoorbellModel V006B2Color WhiteSpecificationWork Wireless digital remote control， do not interfere with each other over long distances obstacle remote controlPower Less than 2WOperating Frequency 315MHzPower Source 3V 2AA batteriesReceiver Operating voltage DC 3VTransmitter working voltage 12V (Battery Model: 23A 12V)Sound 38 polyphony soundsDimensions & WeightPackage Dimension 210 x 165 x 33mmGross Weight 239gPackage Contents1 x Transmitter1 x Reciver1 x Battery1 x Doorbell