Multiple Device Links: plug-and-play wireless headsets can be directly connected to computers and phones. This professional headset is certified for Skype for Business, connects seamlessly with major UC platforms, and integrates natively with Yealink IP phones. | Noise-cancelling Headsets: Acoustic Shield Technology & 2x noise-reducing mic intelligently filter background noise. Built-in stereo speakers to enjoy crystal clearly voice calls. The side supports busylight and multiple mute settings (raise the mic or press the mute button), to flexibly switch communication scenarios. | Advanced DECT Tech: DECT 6.0 phone headset is a nice partner for hybrid work - wireless range up to 160 m/525 ft, while being safer and specifically high density. 13 hrs (mono) and 14 hrs (dual) talk time for a full workday. | No-Sense Wear: The work wireless headset with mic is lightweight, only 0.18lb (single ear) and 0.28lb (dual). Featuring soft, breathable memory foam ear cushion combined with an adjustable padded headband, the ergonomic office headphones provide all-day comfort. | 2-Year Guarantee: Yealink headset for computer offers a 2-year Guarantee, backed by professional customer service and a technical team, that aims to provide better services. Desk phone compatible list: USB Phone: T4XS/T4XU/T53/T5XW/T58A/VP59; SBF Phone: T48S/T56A/T55A/T58A; Teams Phone: MP54/MP56/MP58; Connect Via EHS35: T30P, T31P/G, T33P/G; POLY IP Phone: VVX411/401/501/250/350/450; SNOM IP Phone: D765/385/735/785;