Part of the Blackwire 3300 product line On-ear style provides a comfortable, lightweight fit Monaural design lets you keep one ear open for better awareness Wired connectivity ensures reliable, lag-free communication USB Type-C cord and tethered USB-A adapter provide enhanced connectivity across a range of devices Plug-and-play USB connectivity enables easy call handling both in the office and on the go Poly signature audio quality makes collaboration easy and effortless 20Hz to 20kHz frequency range delivers crisp, clear sound so you can hear every detail 180-degree pivoting speakers and a flexible boom microphone provide a personalized fit and optimal voice positioning Plush, padded headband and pillow-soft ear cushions provide all-day comfort Microsoft Teams version features a dedicated button for instant access to the Teams app, enabling seamless collaboration and communication