Poly EncorePro 540 is Comfortable, Lightweight & Rugged! Includes 3 wearing styles: on the ear, behind the head, and over the head Can be worn on either ear Ear hook is flexible, adjustable (size large, 92mm) – ensures a comfortable fit all day Lightest over the head headset in its class: headset is only 22 grams! (less than an ounce) Connecting cable or amplifier required to connect to phone or PC (purchased separately – please contact BTP if you need to know which adapter is compatible) Quick Disconnect feature provides walkaway convenience Compatibility with all Poly Quick Disconnect USB and desk phone audio processors and direct connect cables Patent pending “C-Clip” for easy change of wearing style Comes with soft foam ear cushion Wideband audio provides crisp, clear conversations Flexible noise canceling mic boom allows for optimized mic positioning for clear transmit HW54 printed on headset Cable length from headset to Quick Disconnect 38 inches/3.16 feet TAA Compliant Replaced Plantronics DuoSet 141 and DuoPro 171 in 2016 2 year manufacture warranty BTP Model: PL-HW540MFR Part: 88828-01, 783P0AA#ABA
