Power:
Receiver:1X9V battery
Emitter:3X1.5AA batteries

Size:
Receiver:214x45x29mm
Emitter:124x66x31mm

Package include:
1 x Receiver
1 x Emitter
3 x 1.5V AA Batteries
1 x 9V Battery
1 x Headphone
1 x RJ11 cable
1 x Test clips from RJ11 terminal

• Judging whether the continuous cable line.
• Tracking cable line, and the discrimination of the circuit breaker points, Receiving the cable lines (telephone line) of the audio signal.
• The telephone line to judge the work in the state (idle, ringing, off hook).
• The transmit audio signal to the target cable line.

Judging whether the continuous cable line.AM