Logitech USB Headset Mono H650e Head-band Black, Grey

Weight: 93 g Width: 174 mm Depth: 50 mm Height: 165 mm Windows operating systems supported: Windows Vista Home Basic x64, Windows 7 Professional x64, Windows 8 Enterprise, Windows Vista Home Basic, Windows 8, Windows 7 Home Basic, Windows 7 Ultimate, Windows 7 Home Premium x64, Windows Vista Ultimate x64, Windows 8 Enterprise x64, Windows 8 Pro, Windows Vista Enterprise x64, Windows 8 Pro x64, Windows 7 Home Premium, Windows 7 Starter, Windows Vista Business, Windows Vista Ultimate, Windows 7 Ultimate x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows 8 x64, Windows Vista Business x64, Windows 7 Starter x64, Windows Vista Enterprise, Windows 7 Professional, Windows 7 Home Basic x64 Mac operating systems supported: Mac OS X 10.8 Mountain Lion, Mac OS X 10.7 Lion Product colour: Black, Grey Headset type: Monaural Wearing style: Head-band Recommended usage: Office/Call center Product type: Headset Package weight: 175 g Package height: 62.5 mm Package depth: 202.5 mm Quick start guide: Yes Carrying case: Yes Connectivity technology: Wired 2x 3.5 mm connectors: No USB connectivity: Yes 3.5 mm connector: No Operation voltage range: 1.4 - 5 V 2.5 mm connector: No Master (outer) case length: 412 mm Master (outer) case gross weight: 3 kg Microphone frequency: 100 - 10000 Hz Microphone mute: Yes Microphone sensitivity: -45 dB Microphone direction type: Bidirectional microphone Microphone type: Boom Headphone sensitivity: 90 dB Headphone frequency: 50 - 10000 Hz Total Harmonic Distortion (THD): 4%