Model Number: Telephone headset 3230-100-#7744 Brand Name: Daily Key Specifications/Special Features: Suitable for office, contact centers and IP-phoneAcoustic shock protection circuitErgonomic design, outstanding IP telephony sound and noise canceling microphoneMaterials: voice tube, ABS and POMOver-the-head wearing style, monaural and binaural versionsComfortable, adjustable metal headbandQuick-disconnect functionNoise-canceling microphoneVoice tube microphone boom arm 330° swivelReplaceable soft foam or soft leatherette ear pad