GSM Audio listening device with built in rechargeable Li-ion battery product code GSMEB. This small audio transmitter measuring only 80 x 40 x 18mm is the perfect audio listening. When you dial into the listening device from any location in the world you will be able to silently listen into any conversations taking place within a 10 metre radius. This is not a converted mobile phone this is a purpose built GSM eavesdropping device built in our own workshops. Not only can you use it as a dial listening device it has the ability to call you if sounds are heard in the area of the listening device function.
This Eyetek listening device operates on the GSM frequency 1800 and 1900MHz communications network for worldwide coverage. The standby battery life is approximately 1 week depending on external factors such as signal strength.