The H251N-CD is a monaural, ear muff headset. Noise Canceling microphone. 4 pin Quick Disconnect. Manufacturer: HP Inc. Manufacturer Part Number: 7S443AA. Brand Name: Poly. Product Line: SupraPlus. Product Model: H251N-CD. Product Name: H251N-CD Over-The-Head, Ear Muff Receiver. Product Type: Headset. [Technical Information] Connectivity Technology: Wired. Sound Mode: Mono. [Earpiece] Earpiece Design: Over-the-head. On-ear. Earpiece Type: Monaural. [Microphone] Microphone Technology: Noise Cancelling. Microphone Design: Boom. [Interfaces/Ports] Host Interface: Quick Disconnect. [Physical Characteristics] Form Factor: Ear-cup. [Miscellaneous] TAA Compliant: Yes.

FEATURES

• Connectivity Technology: Wired
• Sound Mode: Mono
• Earpiece Design: Over-the-head
• Earpiece Design: On-ear
• Earpiece Type: Monaural