The 410 is a high quality one-to-one intercom master designed for desk or counter-top mounting. The pleasant all metal design blends in with modern functional decor. The microphone, preamplifier, and large 3" speaker provide excellent sensitivity, low noise, and superior voice quality over long cable runs. The 410 provides clear, two-way communication, audio monitoring through built-in speaker or optional headset and optional footswitch for press-to-talk operation. The 410 will operate with a variety of substations on the GS-400 one-to-one intercom system.