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Black monaural headset with single ear cup, leatherette cushion, flexible mic boom and USB-C cable

POLY

POLY Blackwire 3215 Monaural USB-C Headset

SKU CH-V6SX-8WXXZ

Monaural USB-C headset with 28 mm drivers, noise-cancelling microphone and 3.5 mm option for PC or mobile calls

  • Wireless technologyUSB-C/A
  • Driver size28 mm
  • Headphone frequency range20 Hz-20 kHz
  • Headphone impedance120 ohm
  • Headphone sensitivity118 dB S.P.L. at 1 kHz
  • Connection3.5 mm/ USB Type-C
  • Clear, natural calls with wideband audio and noise-cancelling mic
  • Protected from sudden loud sounds by SoundGuard acoustic limiting at 118 dBA
  • Comfortable all-day wear from lightweight metal headband and leatherette cushions
  • Connects to PC via USB-C and mobile via 3.5 mm jack
  • Folds flat for easy portability between office and travel

Mono design for calls

The Blackwire 3215 is a single-ear headset built for professionals who handle telephony, webinars and conference calls on a PC or Mac. Its monaural layout keeps one ear open to the surrounding office while the USB-C or 3.5 mm connection works with desktops, tablets and phones. A lightweight metal headband and leatherette cushion fold flat for daily transport.

Noise-cancelling mic with DSP

The bundled boom microphone uses wideband audio and digital signal processing to suppress background noise during calls. Dynamic EQ automatically optimises voice clarity and switches tuning for multimedia playback. SoundGuard limits acoustic output to 118 dBA to protect hearing during long sessions.

28 mm driver and 120 ohm impedance

The 28 mm driver delivers a 20 Hz to 20 kHz frequency response at 120 ohm impedance and 118 dB sensitivity. This specification determines whether the headset matches the audio quality and volume requirements of your unified-communications platform.

How it compares

Measured against everything we stock in Wired & Wireless Headsets, at today’s prices. Recalculated every night.

Price $42.99
Cheaper than about 64% of the 1,586 comparable items (median $60.99).

Specifications

Product
Brand namePoly
Product colorBlack
Audio & video
Driver size28 mm
Headphone frequency range20 Hz-20 kHz
Headphone impedance120 ohm
Headphone sensitivity118 dB S.P.L. at 1 kHz
Wearing styleSingle Ear
Mic frequency response100 Hz-10 kHz
Connectivity
Wireless technologyUSB-C/A
Ports & slots
Connection3.5 mm/ USB Type-C

Questions about this item

How often do the leatherette ear cushions need replacing on the Blackwire 3215?

The leatherette cushions fold flat for portability; replace them when they show wear or lose seal, typically after extended daily use.

What limits continuous all-day wear of the Blackwire 3215?

The supra-aural single-ear design rests on one ear, so comfort over long sessions depends on personal fit and the 28 mm driver's clamping force.

Does the Blackwire 3215 get warm or draw noticeable power during all-day calls?

Passive USB-C/A and 3.5 mm operation draws minimal bus power and produces no perceptible heat during extended use.

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