IF YOUR PHONE IS NOT ON THE LIST, PLEASE CONTACT US TO CHECK THE COMPATIBILITY. [COMPATIBILITY] HIS-02 bottom adapter with RJ09 is compatible with Avaya desk phones 1608 1608I 1608-I 1608-1 1616 1616 9608 9608G 9610 9611 9611G 9621 9621G 9620 9620L 9620C 9630 9630G 9640 9640G 9641 9641G 9650 9670 and J139, J159, J169 and J179. [Features] Ergonomic curved headbands for comfort wearing with smooth click stop for adjustment and strong connection between headband and speaker body. [All day Comfort] Light weight, Very comfort, endurable and smart designed for office, contact center and home workers. Softy foam cushions is included. [WARRANTY] 3 years after purchased date. [ASP Circuit] Acoustic shock protection circuit on the speaker protect you from unwanted peak noises on desk phones. Cut over 105dB and keep less 105dB level. [Ready to Use] HIS-02 Quick Disconnect (QD) to RJ9 with IPD Headset allow easy connection to the headset port of desk phones. Plug and play. [WIDEBAND AUDIO & NOISE CANCELLING MICROPHONE] IPD IPH-160 Professional,Binaural, wired phone headset has a HD Wideband speaker to be clear sound and passive noise cancelling microphone make clearer conversation by reducing background noise.