Valcom V-9939C connects microphones to Valcom one-way amplified speakers. It provides contact closure, working with many microphones with PTT (push-to-talk) switches, and features a built-in mic preamp. Intended for mounting at the mic's location, V-9939C is a connector terminal for all connections and gives you a set of Form "C" contacts.

Key Features:

• Valcom multi-tone generator
• Automatically overrides page or music
• Choice of 15 different tones
• USA standard immediate evacuation signals
• Contact closure activation
• Automatically overrides page or music
• Choice of 2 sets of 8 different tones
• CE
• 600 OHM input impedance