Get top quality audio Give your teams and customers the quality audio you expect from Poly, with a flexible noise-canceling microphone to tune out background buzz and chatty neighbors. Make conversations clear Better understanding leads to better outcomes, and happier customers. That's why we use voice-optimized frequency response to make conversations clearer — and more accurate. Flexible microphone boom Give your teams and customers quality audio with a flexible noise-canceling microphone. Acoustic protection SoundGuard Digital uses sophisticated algorithms to provide additional acoustic protection, above and beyond the protection of SoundGuard while it maintains natural-sounding speech. Inline call controls Make every call productive, with inline call control for easy volume adjustment and muting (USB versions only). Voice-optimized frequency Create clearer and better conversations with voice-optimized frequency response. Fold flat earpieces Help agents stay responsive and comfortable with ear cushions that fold flat and around-the-neck placement between calls. Color Black Boom mic length (mm) 135 mm Sensitivity (microphone) -38 +/-3 dB Signal-to-noise ratio >53 dB Impedance 32 ohms Cable length 2190 mm Button user controls Call answer/end; Mute; Volume +/- Headphone type On-ear (monoaural) Number of microphones 1 Microphone type Omnidirectional Speaker bandwidth 20 Hz to 10 kHz Microphone bandwidth 35 Hz to 21 kHz Boom mic rotation 290° Ear cushions Foam (padding material) Compatible Operating Systems Windows 11; Windows 10; macOS Acoustic protection technology SoundGuard 1 Certifications and compliances CE 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) 142 x 177 x 55 mm Weight 0.07 kg Package weight 150 g Minimum System Requirements USB Type-C® port What's in the box User guide; Headset Manufacturer Warranty Poly standard two-year limited warranty