Plantronics HW251N SupraPlus Wideband Headset (64338-31) Cisco The device does not support

The device does not support direct power connection – it's PoE Only

including a warranty

The Cisco SG300 switch is a fully refurbished and tested device with warranty

Kit includes 2 microphones and cables

Plantronics HW251N SupraPlus Wideband Headset (64338-31) Cisco The device does not supportNew Plantronics HW251N SupraPlus Wideband Headset Noise Canceling microphone filters out background sound HW251N P N 75100 06 Uses Plantronics QD Quick Disconnect Connector. Must be used with Plantronics Amp or with proper phone or USB adapter cable Connectivity Technology: Wired, Earpiece Design: Over the head, Earpiece Type: Monaural, Host Interface: Proprietary, Microphone Design: Boom, Microphone Technology: Noise Canceling, Product Model: HW251N,