Callez H303G5 Mono Call Center Headset Headphone with Mic for Panasonic Telephone IP phones KX-T2260 KX-T2310 KX-T2315 KX-T2365 KX-T2368 KX-T7220 KX-T7230 and KX-T7330 ONLY WORKS FOR SOME SPECIFIC PHONES. SEE COMPATIBLE PHONE LIST IN DESCRIPTION, BUY THE ITEM TODAY IF YOU HAVE ONE OF THE PHONE MODELS LISTED BELOW. Superior quality sound with the flexible adjustable noise cancellation microphone. Direct connect over the head headset headphone, No additional amplifiers or adapters required, Most easy setup headset solution. Super Lightweight, Super Durable Headset with Comfortable ear and mic cushions. NO Mic Mute / Volume Control built in.