KMR-358

Its amplifier allows listening to distant conversations discreetly. With a listening range of 100 metres, it has condenser and electret types of microphones. It also has Windscreen protection and a mechanic vibration attenuation device. The standard package includes case and earpiece.

• Microphone type: condenser and electret
• Sensitivity: -60 dB (1 kHz, 0 dB = 1v/µbar)
• Operative range: 50 Hz ~ 10 kHz
• S/N ratio: 40 dB or over
• Listening range: about 100 meters