HP Poly Spare Convertible Headset for CS540 85T27AA#ABA Addasound Accessories The SM5400 Ultimate PTT USB

The SM5400 Ultimate PTT USB Military approved Headset provides the performance

Plug-and-Play for Microsoft Lync 2010 and Microsoft OCS 2007

Mute Button

Headset to QD - Bottom cord NOT included

HP Poly OEM Brand Amplifier replacement cords OLD Part# 26716-01

HP Poly Spare Convertible Headset for CS540 85T27AA#ABA Addasound Accessories The SM5400 Ultimate PTT USBConvertible Headset replacement for the CS540 Wireless Headset If you broke the headset and the base is working good, no need to replace the whole unit, just replace the headset. Items included: headband and leatherette ear cushion HEADSET ONLY, NO BASE WITH THIS New HP part# HP 85T27AA#ABA