This Spy GSM Socket listening Device is ideal for covert audio surveillance, it’s very unlikely to arouse suspicion as it’s just a standard household/office socket extension. It’s a fully functional adapter and so can actually be used whilst also doubling up as a listening device.Very easy to use, just dial the number of SIM card inside the bug (SIM card included), your call will connect silently and you are now able to listen in to surrounding sounds – you can call Spy GSM Socket listening Device from anywhere worldwide. Sound is filtered to offer good quality audio.
1.Frequency : 800MHz, 900MHz, 1800MHz.Pls double check if avaible used in your country GSM service. Not for 3G Network,CDMA etc.
2.Microphone range(Meter): 5~7(Radius), 4 levels