US Cable New Headset Headphone For Avaya 9620C 9620L 9621 9630G 9641 9641G 9650G 9650C<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>About 8-feet cord with RJ-9 modular plug lets you walk away from the phone while still wearing your headset Polaris models are for phone systems with built-in amplifiers</li><li>Direct connect over the head headset， no additional amplifiers or adapters required， most easy setup headset solution.</li><li>Most easy setup headset solution. NO Mic Mute / Volume Control built in. Super Lightweight， Super Durable Headset with Comfortable ear and mic cushions</li><li>Compatiblity(Only compatible with telephones with a built-in amplifier. Some other specific Avaya 9608 9610 9611 9611G SNOM 320 360 370 720 760</li><li>Polaris models are for phone systems with built-in amplifiers No Quick-Disconnect features included. NO Mute / Volume Control built in.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41YhPY3HLWL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51anMcX7wFL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31It4Zjpc0L.jpg" noproxy>