Power supply: 1.5v*3battery,9v*1 6F22battery
Size: Transmitter: 128x70x30mm Reveiver:221.5x45x28mm
Weight: receiver 120g
        transmitter 160g
Functions:Line finding: look for RJ45,RJ11 and their metal wires, and the detection of the wire flow: judge the state of the telephone line, judge whether the wire is connected continuously