Yealink UH38 is a premium stereo USB headset featuring phenomenal call and music audio. Dual-microphone noise cancellation and Acoustic Shield Technology provide you with a superior call experience. UH38 supports USB and Bluetooth dual connections, allowing you to manage two call devices simultaneously to improve call processing efficiency. Premium materials and a sturdy metal frame make it textured and durable. Soft and skin-friendly headband ear cushions make the headset all-day comfortable. UH38 is the headset that gives you the best focus and collaboration to improve your productivity to a new level, whether you?re in the office or working remotely at home. It works seamlessly with major UC platforms and integrates natively with Yealink IP phones. Specifications High-quality duo headphones: leatherette earphones with memory function 320 manually adjustable boom Integrated LED occupancy indicator Crystal-clear audio technology: support for HD Voice and broadband communications Dual unidirectional ECM noise-cancelling microphones included Microphone frequency response: 100Hz - 14kHz Microphone sensitivity: -44dB 35mm drivers with passive noise reduction available Speaker frequency response: 20Hz - 20kHz Speaker sensitivity: 115+3db SPL ActiveProtection technology: hearing protection against acoustic shock Flexible business headset for PC, IP phone and mobile Dual wired/wireless connectivity: USB-A + Bluetooth 5.1 Multipoint support: simultaneous pairing on two separate devices On-cable controller: pick up/hang up, hold, reject call, volume up/down, mute, redial last call Built-in 200mAh battery Battery life: up to 8 hours talk time and up to 12 hours standby time Operating system requirements: Windows 8/8.1/10; Apple macOS Quick and easy set-up: Plug Play Cable length (headset to controller): 0.8m USB cable length: 1.2m The item will be shipped directly from our supplier.