Product Size: 220*180*58mm Speaker Diameter: 30mm*1 Nominal Impedance (AC）: 32Ω±15% Effective frequency range: 20-20KHz Microphone sensitivity: -42±3dB Headset sensitivity: 95±3dB Sound distortion: ≤3% Cable Length: about 9.5ft (2.9m) 3-in-1 in-line control: 3.5mm jack & USB plug & Type-C adapter USB line control with MUTE function 270° Rotatable Mic Boom 30mm Speaker, built-in USB sound driver, HD should quality Adjustable headband, lightweight, no ache after long wearing Compatible with all mobile devices and computer Suitable for: Online courses, Skype chat, call centre, conference calls, webinar presentations and mobile or computer games, 24-hour customer service and a professional technical team are available
