Plantronics M175C Convertible Over-the-Head or Over-the-Ear Headset With Volume & Mute Control for standard 2.5 mm. Allows for hands-free operation of your phone. Conveniently switches from over-the-head style to over-the-ear style. Noise-canceling boom microphone with adjust switch delivers optimal voice transmission. Includes in-line volume and mute control and clothing clip for added stability. Compatible with telecoil-equipped hearing aids.

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