Poly MS50/T30-3 alternatives, similar headphones

Philips SHE3621
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Audio-Technica ATH CK7ASV
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Audio-Technica ATH CK9
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Zoom 4386
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Poly - Plantronics MS 50/T30-1
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Poly - Plantronics MS MS50/T30-2
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Poly - Plantronics MS 200
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Poly - Plantronics SupraPlus Wireless CS361 Spare Headset
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Poly - Plantronics MIX 20Z
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Midland AVP-H1
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Midland AVPH3 Surveillance
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Midland AVP-H4
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Poly SupraPlus HW251
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Poly SupraPlus HW261
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Poly SupraPlus HW251/A
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Poly SupraPlus HW251N/A
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Poly SupraPlus HW261N/A
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Poly CS 55 Replacement Headset
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Poly MS50/T30-1
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Poly SupraPlus HW261N-CIS
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Poly SHR 2082-01
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Poly M210C
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Poly CS 70N Replacement Headset
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Poly CS 70N/A
Specifications