Eartec Office 308 Headset is the best in it's class for a single ear headset. Compatible with Polycom VVX 600 VVX 601 VVX 1500 VVX150 VVX 250 VVX 350 VVX 450 VoiP Phone. VVX 101 201 300 301 311 400 VVX 401 VVX 410 VVX 500 VVX 501 VVX 600 VVX 601 VVX 1500.
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