Dimensions: 11.1 x 14.9 x 6.7 cmHeadphone type: HeadsetsModel: Poly EncorePro 320ÐåñéãñáöÞ ðñïúüíôïò: 77T26AAColour: BlackMicrophone Frequency Response: 35 Hz to 21 kHzHeadset Noise Cancellation: NoMicrophone Noise Cancellation: YesSound Output: StereoSuggested Use: OfficeWireless Connection: NoneWired Connection: USBType: On EarMicrophone Sensitivity: -38 +/-3 dBDesigned For: PCMicrophone Impedance: 32 ohmsWeight: 0,105 kgÅããýçóç Åðßóçìçò ÅëëçíéêÞò Áíôéðñïóùðåßáò Part Number ÊáôáóêåõáóôÞ: 77T26AA