GS-FW035 is a single-channel headset interface for four-wire systems. It combines microphone amplification, balanced four-wire output, a permanently active output and local monitoring with adjustable sidetone.

• Large illuminated PTT switch programmable as PTT, cough or on/off.
• Balanced four-wire output and always-on Lazy output.
• Microphone amplifier with compressor/limiter.
• Balanced four-wire input with preset gain.
• 6.35 mm headphone output.