Poly Blackwire 3215 Monaural Headset +USB-C/A Adapter TAA - Mono - Mini-phone (3.5mm), USB Type C - Wired - 32 Ohm - 20 Hz to 20 kHz - On-ear - Monaural - Ear-cup - 7.4 ft (2.26 m) Cable - Omni-directional Microphone - Noise Canceling - Black

Poly Blackwire C3215 Monaural Headset + Carry Case (Bulk Qty.50) - Mono - Mini-phone (3.5mm), USB Type C - Wired - 32 Ohm - 20 Hz to 20 kHz - Over-the-head, On-ear - Monaural - Ear-cup - 7.4 ft (2.26 m) Cable - Noise Cancelling, Omni-directional Microphone - Noise Canceling - Black

Poly Blackwire 3225 Stereo USB-A Headset (Bulk) - Stereo - Mini-phone (3.5mm), USB Type A, USB Type C - Wired - 32 Ohm - 20 Hz to 20 kHz - Over-the-head, Over-the-ear - Binaural - Supra-aural - 7.4 ft (2.26 m) Cable - Noise Cancelling Microphone - Black

Poly Blackwire C3225 Stereo USB-C Headset (Bulk) - Stereo - Micro USB, Mini-phone (3.5mm) - Wired - 32 Ohm - On-ear - Binaural - Supra-aural - 7.4 ft (2.26 m) Cable - Noise Cancelling, Omni-directional Microphone - Noise Canceling - Black

Poly Blackwire C3215 Monaural Headset +Carry Case TAA (Bulk) - Mono - Mini-phone (3.5mm), USB Type C - Wired - 32 Ohm - 20 Hz to 20 kHz - On-ear, Over-the-head - Monaural - Supra-aural - 7.4 ft (2.26 m) Cable - Omni-directional, Noise Cancelling Microphone - Noise Canceling - Black

Poly Blackwire 3215 Monaural USB-A Headset (Bulk) - Mono - Mini-phone (3.5mm), USB Type A, USB Type C - Wired - 32 Ohm - 20 Hz to 20 kHz - Over-the-head, Over-the-ear - Monaural - Supra-aural - 7.4 ft (2.26 m) Cable - Noise Cancelling Microphone - Black

Poly Blackwire C3215 Monaural Headset + Carry Case - Mono - Mini-phone (3.5mm), USB Type C - Wired - 32 Ohm - 20 Hz to 20 kHz - Over-the-head, On-ear - Monaural - Ear-cup - 7.4 ft (2.26 m) Cable - Noise Cancelling, Omni-directional Microphone - Noise Canceling - Black

Poly Blackwire 3225 Stereo USB-C Headset + 3.5mm Plug + USB-C/A Adapter (Bulk) - Stereo - USB Type C, Mini-phone (3.5mm) - Wired - 32 Ohm - 20 Hz to 20 kHz - On-ear, Over-the-head - Binaural - Supra-aural - 7.4 ft (2.26 m) Cable - Omni-directional, Noise Cancelling Microphone - Black

Poly Blackwire 3225 Stereo USB-C Headset + 3.5mm Plug + USB-C/A Adapter - Stereo - USB Type C, Mini-phone (3.5mm) - Wired - 32 Ohm - 20 Hz to 20 kHz - On-ear, Over-the-head - Binaural - Supra-aural - 7.4 ft (2.26 m) Cable - Omni-directional, Noise Cancelling Microphone - Black

Poly Blackwire 3215 Monaural USB-C Headset + 3.5mm Plug + USB-C/A Adapter (Bulk) - Microsoft Teams Certification - Mono - USB Type C, Mini-phone (3.5mm) - Wired - 32 Ohm - On-ear - Monaural - Ear-cup - 7.4 ft (2.26 m) Cable - Omni-directional Microphone - Noise Canceling - Black

Poly Blackwire 3215 Monaural USB-C Headset + 3.5mm Plug + USB-C/A Adapter - Microsoft Teams Certification - Mono - USB Type C, Mini-phone (3.5mm) - Wired - 32 Ohm - On-ear - Monaural - Ear-cup - 7.4 ft (2.26 m) Cable - Omni-directional Microphone - Noise Canceling - Black

Poly Blackwire 3215 3.5mm Top - Microsoft Teams Certification - Mono - Mini-phone (3.5mm), USB Type A - Wired - 32 Ohm - 20 Hz to 20 kHz - Over-the-head, Over-the-ear - Monaural - Supra-aural - 7.4 ft (2.26 m) Cable - Noise Cancelling Microphone - Black