Adjustable headband for comfortable, secure fit. Adjustable microphone boom. Noise-cancelling microphone for crystal clear calls. Advanced speaker technology protects hearing. Plantronics RF Noise Shield reduces annoying RF static.
Microphone adjust switch for optimal voice output.
Compatible with telecoil-equipped hearing aids. 49 C Specifications are subject to change. Instructions Place items in your shopping cart and for review later. Use our online ordering system to create Purchase Orders, Credit Card Orders, Fax Orders or Mail-in Orders Purchase Orders are accepted from all government and academic institutions. We ship worldwide.