Lenovo EPOS ADAPT 561 II Headset Wired & Wireless Head-band Office/Call center USB Type-C Bluetooth Black

Certification: CB, BQB, CE, UKCA, RCM, FCC, ICES, BIS, SIRIM, SDoC, RAMATEL, ANATEL, BSMI | Windows operating systems supported: Yes | Bluetooth profiles: SBC | Wearing style: Head-band | USB connectivity: Yes | Foldable: Yes | Product colour: Black | Ear coupling: Supraaural | Package depth: 65 mm | Recommended usage: Office/Call center | Receiver included: Yes | Package weight: 524.5 g | Impedance: 32 Ω | Total Harmonic Distortion (THD): 0.3% | Headphone frequency: 20 - 20000 Hz | Charging stand: No | Cables included: USB Type-C to USB Type-C | Product type: Headset | Standby time: 1944 h | Sound pressure level (max): 108 dB | Package type: Box | Package height: 207 mm | Mobile operating systems supported: iOS | Wireless receiver interface: USB Type-C | Headphone sensitivity: -24 dB | Safety sheet: Yes | Package width: 183 mm | Charging source: USB | Driver unit: 4 cm | Connectivity technology: Wired & Wireless | Wireless range: 30 m | Weight: 245 g | Bluetooth: Yes | Folding microphone: Yes | Bluetooth profiles: AAC | Battery operated: Yes | Operating relative humidity (H-H): 10 - 85% | Bluetooth version: 5.0 | Maximum input power: 50 mW | Driver type: Dynamic | USB connector: USB Type-C | Other operating systems supported: ChromeOS | Microphone frequency: 100 - 10000 Hz | Operating temperature (T-T): -20 - 70 °C | Charging case: No | Number of microphones: 2 | Charging time: 210 min | Acoustic system: Closed | Headset type: Binaural | Microphone type: Boom | Microphone input impedance: 32 Ω | Battery recharge time: 3.5 h | Microphone direction type: Omnidirectional | USB Type-C charging port: Yes | Optimized for: UC | Microphone noise-canceling: Yes | Continuous audio playback time (ANC off): 46 h | Talk time (ANC off): 41 h | Continuous audio playback time (ANC on): 24 h | Distortion: 0.3% | MEMS (Micro-Electro-Mechanical System) microphone: Yes | Hybrid noise-canceling: Yes | Talk time (ANC on): 24 h