A normal looking mobile phone type battery, that can be left lying around anywhere without attracting attention. On your desk, on a shelf at home or even in the bedroom no one would give it a second look.
Inside the dummy battery is a concealed a GSM listening device with a high sensitivity microphone allowing you to dial in from anywhere in the world and listen in to the surrounding area with crystal clear clarity.
Do not work in USA and Canada
Network: GSM 900/1800/1900
Power consumption: In standby mode (not listening) 3 days and about 3 hours listening time.
This machine is only inserted the SIM can be boot.
Please pull the switch "on" position. When charge.
The new machines need to be recharged before use 3-4 hours in order to achieve the best results, please use our distribute charger avoid damage to the host.
Boot: The SIM card inserted into the card connector, the red indicator light after 30 seconds the product is ready. This state can only answer an incoming call.
SMS Settings: send the specified messages can be realized the following functions