The SmartBoom PRO professional single-ear headset that utilizes SmartBoom microphone boom On/Off technology. The headset also provides high ambient-noise reduction and produces high-quality audio using an electret uidirectional microphone. The headset features a flexible ambidextrous design, soft foam padding, foldable ear cup, replaceable ear, head, and temple cushions and is wired with a dual 3.5mm connector for use with MicroCom Systems.Main Features:For use with all MicroCom beltpacksDetachable 5 ft. (1.52 m) cable with 3.5mm dual connectorOutstanding audio quality with enhanced acoustic isolationClosed back circumaural (over ear) design available in single and dual-ear modelsFlexible, ambidextrous swiveling mic boomSmartBoom flip up microphone muteElectret noise-cancelling cardioid microphone optimized for voice communicationsComfort fit adjustable headbandReplaceable ear cushion pad, headband pad, and windscreenNon-reflective rubberized matte black finishCollapsible earpiece designSpecifications:Microphone:Microphone Type: Electret CondenserFrequency Response: 2016,000 HzMic Sensitivity: -45 2 dBV/Pa at 1 kHzPattern: UnidirectionalOutput Impedance: 11.9 kBias Voltage: 1.5V~2.2VSpeaker (Headphone):Frequency Response: 2020,000 HzNominal Impedance: 100 Sensitivity at 1 kHz:Single 117 dB SPL/mWDual 121 dB SPL/mWSpeaker Type: DynamicMax Input Power: 500 mWCables:Termination at Ear: RemovableLength: 5.00 ft. (1.52 m)Outside Diameter: 0.24 in. (6.00 mm)Physical Features:Mic Boom Length: 8.50 in. (215.90 mm)-Weight (without cable)Single 8.1 oz (229.63 g)Dual 11.4 oz (323.18 g)Cable 3.8 oz (107.73 g)