Part Number 4XD1Q30302 Tech Specs Product Weight 138g Minimum Operating Temperature 0? Maximum Relative Humidity (%) 90% Maximum Operating Temperature 40? JAN 4582763430202 EAN 0195892104292 UPC 195892104292 Smart Find Visibility Yes Warranty Type CRU Warranty Period 2 Years Other Physical Specifications NA Other Operating Environment NA Other Electrical Specifications NA Minimum Relative Humidity (%) NA Packed Weight 392g Packed Dimensions (L x D x H) 194*211*76mm (7.64*8.31*2.99 in) Package Type Brown Box Included Accessory USB-C to USB-C cable Shipment Group Lenovo Wireless Stereo Headset USB-C to USB-C cable Documents Agency Approvals CB, BQB, CE, TUV mark, UKCA, RCM, EAC, cTUVus, FCC, ICES, WPC, BIS, SRRC, SIRIM, KC, IMDA,SDOC, SDPPI, JRF, RAMATEL, ANATEL, BSMI, NCC, ICASA Color Black Distortion < 2% Sensitivity 109 ± 2.5 dB Impedance 32 Ohm Frequency Range 20 Hz - 20 kHz Driver 40 mm Microphone 3 microphones for ENC Audio Out NA Audio Input Bluetooth 5.3 Controls Power on/off, Bluetooth pairing Volume +/- Call answers / end / reject / hold / switch Microphone mute / unmute Media control: play / pause / forward / backward RMS Power NA Subwoofer NA Wireless Operating Distance Up to 30m Cable Length/Type 1.3 m Play Time 60 hours Battery Charging Time 2 hours Battery Capacity 640 mAh Power Requirement 5V, 640mA Connectivity Bluetooth 5.3 Supported OS Windows 10 and above, Mac OS Brand Lenovo