Lighting: NoneWireless Connection: NoneColour: BlackMicrophone Noise Cancellation: YesRechargable Battery: NoDetachable Microphone: NoDesigned For: PCSuggested Use: OfficeType: Over EarWeight: 125gSound Output: StereoPolar Patern: Uni-directionalHeadset Noise Cancellation: NoModel: Jabra Evolve2 40 SEÐåñéãñáöÞ ðñïúüíôïò: 24189-989-999Dimensions: 186x157x60.5mmHeadphone type: HeadsetsHeasdet Frequency Response: 20Hz - 20000HzMicrophone Frequency Response: 20Hz - 10000HzSpecial Characteristics: 40mm speakersWired Connection: USBMicrophone Sensitivity: -38/PaÅããýçóç Åðßóçìçò ÅëëçíéêÞò Áíôéðñïóùðåßáò Part Number ÊáôáóêåõáóôÞ: 24189-999-799