CrystalClear Wideband Audio Enhanced DSP and stereo sound deliver natural, highquality voice clarity for professional calls.

NoiseCancelling Boom Microphone Reduces background noise to ensure clear voice transmission in meetings and webinars.

PlugandPlay USBA Connectivity Connect instantly to PC or Mac with simple USBA compatibility for office or remote work.

SoundGuard Acoustic Protection Prevents sudden audio spikes above 118 dBA for safer listening during long sessions.

Lightweight OnEar Comfort Ergonomic onear design with adjustable headband; weighs only 130g for allday comfort.

Microsoft Teams Certified Optimized for Teams environments for seamless communication and enterprisegrade performance.

The Poly Blackwire 3320M USBA (21401201) is a professionalgrade wired stereo headset designed for crystalclear communication. It features wideband audio, DSP enhancement, and a noisecancelling boom microphone for superior call clarity. With USBA plugandplay connectivity, it works instantly with PCs and is certified for Microsoft Teams. The lightweight 130g onear design ensures comfortable allday use, while SoundGuard protection delivers safe listening during extended office or remote work sessions.