Excellent performance in a very covert package. This is fast installation RF transmitter bug, hard to see and also hard to detect with a conventional bug detector; it covertly transmits only when a
call is online or the phone receiver is lifted from the hook. It rivals many competitors products selling at 10 times the price! No surprise then that it's our best selling landline telephone bug
and is used by professional detective agencies worldwide. Designed to operate on a fixed waveband, and paired with a simple cassette player/recorder receiver. This bug uses a 2-transistor circuit
with a coated inductor instead of more conventional coils, making it robust and stable in operation. Transmitter: Transmits to 150m depending of environment. Starts to transmit the moment the phone
is picked up or the line is activated Takes it power from the phone line - always on. Fully working phone doubler. Utterly covert. Receiver: Comes with a receiver built into a fully working radio
cassette player/recorder