***** Best Quality Guranteed. *****Monaural headset with Noise cancellation and Acoustic shock protection circuit. Very endurable and comfort designed for call center and office users. 3 Year warranty. flexible microphone boom arm with 270 degree rotation of selective wearing for left or right ear. Ergonomic curved headbands for comfort wearing with smooth click stop for adjustment and strong connection between headband and speaker body. *****HIS-02 cable is only made for headset with Avaya 9600&1600 series to keep the optimal microphone gain. Very sturdy and tensil cable including Kevlar fabric is used. *****AVAYA phone models) 1608, 1616, 9610, 9620, 9620L, 9620C, 9630, 9630G, 9640, 9640G, 9650, 9670 IP phones - AVAYA 96XX, Definity 9631, one-X Deskphone Editions.
******* IMPORTANT NOTICE-COMPATIBILITY** Before you purchase our headset, please find your telephone models on list. Our headset with bundle cable works well with all the phone models shown. It must NOT be worked