Cisco Headset 521 Wired Single 3.5mm + USBC Headset Adapter (CP-HS-W-521-USBC)

Specifications General Information Product Type:Headset Earpiece Earpiece Design: Over-the-head Earpiece Type: Monaural Technical Information Minimum Frequency Response: 50 Hz Maximum Frequency Response: 18 kHz Microphone Microphone Design: Boom/On-cable Miscellaneous Country of Origin: China Connectivity Technology: Wired Product Series: 500 Brand Name: Cisco Physical Characteristics Form Factor: Supra-aural Manufacturer: Cisco Systems, Inc Product Model: 521 Product Name: 521 Headset Impedance: 90 Ohm Manufacturer Part Number: CP-HS-W-521-USBC Manufacturer Website Address: http://www.cisco.com Microphone Technology: Uni-directional Microphone Technology: Electret Microphone Technology: Condenser Sound Mode: Mono Sound Pressure Level: 118 dB(A)