Spy GSM Based Wireless Device

This is the ultimate in remote audio surveillance. Unlike conventional radio transmitters, GSM offers superb quality, virtually unlimited transmission distance, high security, dependability and absolute simplicity of use. You can hear this Sim Card Spy Ear from anywhere, and just dial in to this Sim Card Easy to install, and zero configuration Work with gsm bands (800MHz, 900MHz, and 1800MHz). It can be used for remote monitoring, the base station location and tracking, home surveillance, automotive anti-theft tracking, child custody.