Poly Blackwire 5210 Monaural Wired Headset Black 8X230A6 Brand_Yeastar more stable connections and a

more stable connections and a powerful extendable network

Three ED (Extra-low Dispersion) glass elements make a significant contribution to this lenss outstanding optical performance

Six bottom-mounted rubber feet keep it firmly in place

1 x MIC in

Poly Blackwire 5210 Monaural Wired Headset Black 8X230A6 Brand_Yeastar more stable connections and aPoly Blackwire 5210 Monaural Wired Headset Black 8X230A6 The ergonomically designed Blackwire 5200 Series is comfortable, and the easy to use connectivity lets you work on a variety of devices. Get great sound Tune out the inevitable workplace distractions with a headset full of features soft, conforming ear cushions that provide passive noise canceling and a precisely tuned microphone masks nearby conversations. Enjoy long lasting comfort Your ears