[COMPATIBILITY] QD Bottom cable with USB-A Adapter is compatible with Skype, Microsoft Teams,, Cisco Jabber, Avaya One X and other soft phones IF YOUR PHONE IS NOT ON THE LIST, PLEASE CONTACT US TO CHECK THE COMPATIBILITY. [Features] Slim and flexible microphone boom arm with 120 degree bended for the best position to the mouth. Ergonomic curved headbands for comfort wearing with smooth click stop for adjustment and strong connection between headband and speaker body. Luxury metal cap not to insert any hair when adjusting the headband. [All day Comfort] Very comfort, endurable and smart designed for office, contact center and home workers. Premium protein leatherette cushions is included. [WARRANTY] 3 years after purchased date. [ASP Circuit] Acoustic shock protection circuit on the speaker protect your hearing from unwanted peak noises on desk phones. Cut over 105dB and keep less 105dB level. [Ready to Use] USB-A Adapter with QD allow easy connection to the PC for soft phone use. Plug and Play - USB CODEC.2.0,full speed -*Inline controls- call ON/OFF only worked in Skype for Business, microphone mute and speaker volume control. [WIDEBAND AUDIO & NOISE CANCELLING MICROPHONE] IPD IPH-250 Single Ear wired phone headset has a HD Wideband speaker to be clear sound and passive noise cancelling microphone make clearer conversation by reducing background noise.