Lenovo 4XD1P83425 headphones headset Wired Head band Calls Music USB Type A Black Noise level___31 dB 1 Product colour Black Projected DMC HDO 1 Product colour Black Projected image size 60 300 Compatibility VPL FW60 7 g Packaging content Batteries included Yes Packaging content Logitech Pen User Documentation Logistics data Harmonized System (HS) code 84733080 Master (outer) case width 249 mm Master (outer) case length 339 mm Master (outer) case height 125 mm Master (outer) case gross weight 1 Lenovo USB A Wired Stereo Headset Gen 2 Performance Product type Headset Wearing style Head band Recommended usage Calls Music Headset type Binaural Product colour Black Volume control Button Control unit type In line control unit Control type Buttons Foldable Yes Cable colour Black Certification CB FCC SDOC IC Voc VCCI EMC KC EMC ECAS ROHS CE ROHS BSMI Ports & interfaces Connectivity technology Wired USB connectivity Yes USB connector USB Type A Headphones Ear coupling Circumaural Headphone frequency 20 20000 Hz Impedance 32 Ω Headphone sensitivity 116 dB Total Harmonic Distortion (THD) 3% Microphone Microphone type Boom Microphone sensitivity 40 dB Folding microphone Yes System requirements Windows operating systems supported Yes Mac operating systems supported Yes Mobile operating systems supported Yes Operational conditions Operating temperature (T T) 5 40 °C Weight & dimensions Weight 140 g Packaging data Package width 185 mm Package depth 184 mm Package height 58 mm Package weight 258 g