Cassette recorders, olders phones Nokia, Samsung. Recorders with built-in microphone or a on cable microphone. Digital audio recorders that can be found on the market, Olympus, Sanyo etc.
Professional types digital voice recorders: EDIC-mini, Gnome, Olympus, Gnome DR, Papyrus. Smartphones, including iPhones, HTC, Sony, LG, SAMSUNG, iPad. Wireless microphones, microphones, audio and video recorders.
Jammer Infratornado also prevents leakage of information through wiretaps analog, digital and seismic with microphone. The product is camouflaged in a briefcase and can work in the office stationary or transferable at a meeting outside the office.