Model

1970

Brand

Microsoft

Wireless Technology

Bluetooth, USB-A wireless

Dimensions Length: 6.77” (172 mm) Width: 6.46” (164 mm) Depth: 2.36” (60 mm) Weight 0.30 lbs (136 g) Exterior Color: Black Frequency response Microphone: 100Hz-10KHz Speaker: 100Hz-20KHz Noise cancellation Beamforming with 2 mems microphone Speaker 28 mm moving-coil speaker driver Sound pressure level output Up to 91 dB Charging Full charge in 2.5 hours What’s in the box Microsoft Modern Wireless Headset Charging cable USB dongle Quick start guide Safety and warranty documents Certified for Microsoft Teams details Microsoft Teams and Mute LED Battery life Up to 50 hoursFootnote1 of music listening time or up to 30 hours of talk time on a Microsoft Teams callFootnote2 USB cord length 59” (1.5 m) Simultaneous connection Up to 2 Inputs USB A dongle and Bluetooth Compatibility Bluetooth compatibility Windows 11 Home/Pro, Windows 10: 20H1, 19H1, RS5* Windows 8, Windows 7 Mac OS, Android, IOS Microsoft Teams （ASP） compatible with Windows 11 Home/Pro, Windows 10, and Mac OS Some features require software download (storage required); not supported on Mac OS. Audio codec SBC Buttons/controls Power Slide button Pairing button Microsoft Teams button Mute button Hook button Flip-to-mute Volume control dial Warranty 1-year limited hardware warrantyFootnote3 Technology details Bluetooth range: 32.8 ft (10 m) – office 98.42 ft (30 m) – office air