Lenovo 4XD1Q30302 headphones/headset Wireless Head-band Calls/Music Bluetooth Black

Warranty period: 2 year(s) Operating temperature (T-T): 0 - 40 °C Weight: 137 g Windows operating systems supported: Yes Mac operating systems supported: Yes Headset type: Binaural Wearing style: Head-band Recommended usage: Calls/Music Product type: Headset Product colour: Black Cable length: 1.3 m Control type: Buttons Operating keys: Reject call Volume control: Button Package depth: 211 mm Package width: 194 mm Package type: Box Package weight: 392 g Package height: 76 mm Cables included: USB Type-C to USB Type-C Wireless range: 30 m Bluetooth: Yes Bluetooth version: 5.3 Connectivity technology: Wireless Battery recharge time: 2 h Continuous audio playback time: 60 h Battery voltage: 5 V Battery capacity: 640 mAh Talk time: 31 h Microphone noise-canceling: Yes Microphone type: Boom Number of microphones: 3 Folding microphone: Yes Warnings: Do not use near sources of heat or flame. Impedance: 32 Ω Driver unit: 4 cm Headphone frequency: 20 - 20000 Hz Headphone sensitivity: 109 dB Ear coupling: Circumaural Total Harmonic Distortion (THD): 2%