Built-in USB-A and USB-C® connectors Answer soft-phone calls from any PC, no matter what kind of USB port you have. 1 Full backwards compatibility for legacy equipment Work hassle-free across new and legacy equipment with QD models, or USB models with USB-A and USB-C® connectors right on the cable. 1 2 Remote firmware and cloud system updates Never worry about updates, thanks to remote firmware and cloud system updates. 1 Built-in Hold and Call Answer buttons Make every call easier with clear, built-in hold and call answer buttons. Recessed buttons Eliminate button-pushing mistakes with recessed buttons that don’t get accidentally activated. Single button for joint audio/video hold Enjoy worry-free privacy and peace of mind with a single button for joint audio and video hold. Acoustic hearing protection Save hearing across the organization with acoustic protection that manages safe volume. Improved cable durability Take your headset anywhere without worrying about breaks, thanks to durable cable construction. Color Black Boom mic length (mm) 135 mm Sensitivity (microphone) -40 +/-3 dB Signal-to-noise ratio >50 dB Cable length 78.5 cm Headphone type On-ear (stereo) Microphone type Omnidirectional Speaker bandwidth 20 Hz to 10 kHz Microphone bandwidth 20 Hz to 16 kHz Boom mic rotation 290° Ear cushions Foam (padding material) Compatible Operating Systems Windows 11; Windows 10; macOS Acoustic protection technology SoundGuard 1 Dimensions (W x D x H) 11.1 x 14.9 x 6.7 cm Speaker size 5.6 mm Package dimensions (W x D x H) 147 x 178 x 54 mm Weight 74 g Package weight 173.92 g Minimum System Requirements USB Type-A port; USB Type-C® port What's in the box Headset Manufacturer Warranty Poly standard two-year limited warranty