with probes, voice activated, high powered, coin cell operated, ultra slim, key fob, pen, through the wall, encrypted, room, modular and high power modular.

includingprobes for listening through walls, telephone and room microphone.

multi-channel with noise elimination and decryption options

Signal repeater and VHF receiver with clear or decryption options

Telephone transmitters for digital lines, telephone UHF transmitter, high power and encryption options, interception of fax messages