Wireless Audio Doorphone Ci-788

Features:1) Talks between door station and handset can be done simultaneously 2) Handsets can be free to move within the communication area (communication distance up to 100 meters at coverage range) 3) Convenient installation and wires spreading is not necessary 4) A door station can equip with 4 handsets 5) Talks to handset are transferable between handsets 6) Equipped with lock-controller can open door remotely by handsets: If your home or office has installed an electron lock, with the connection between the lock-controller and the electron look, you will be able to perform the remote-control open doors by handsets of the wireless gate pass7) Communication frequency: 46/49MHz