GS-FW008 is a talkback beltpack for four-wire systems and headphone-based communication. It is intended for operator positions requiring local speech insertion into a wired intercom system.

• Beltpack format for use at the operator position.
• Talkback function on a four-wire circuit.
• Application with headphones or headset in production communications.
• Functionally distinct from passive cough or mute switches.