Blackwire 3320 vs Accentum Plus Comparison
Compare Blackwire 3320 vs Accentum Plus side by side: specs, ratings, pros and cons, and which one fits your room best.
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At a Glance
Blackwire 3320
The Poly Blackwire 3320 is a wired stereo on-ear headset. It has 32 mm speakers, a noise-cancelling boom mic that rotates 280°, and an inline control with a Teams button on the Teams version.
- Best For
- Desk users
- Style
- On-ear stereo headband
- Weight
- 131 g
- ANC
- None
- Mics
- 1
- Boom Mic
- Yes (flexible boom, 280° rotation, 135 mm)
- Talk Time
- —
- Connect
- Wired USB-C with USB-A adapter
- Certified
- Microsoft Teams, Works With Chromebook
Accentum Plus
The Sennheiser Accentum Plus Wireless sits below the Momentum 4. It has hybrid adaptive ANC, 37 mm drivers and Bluetooth 5.2 with SBC, AAC, aptX and aptX Adaptive.
- Best For
- Android users
- Style
- Over-ear (around-the-ear)
- Weight
- 227 g
- ANC
- Hybrid adaptive ANC
- Mics
- 2
- Boom Mic
- No
- Talk Time
- 50 h
- Connect
- Bluetooth, 3.5 mm aux
- Certified
- —
Review Scores Compared
Expert Score
Voice & Mic Clarity
Comfort & Ergonomics
Connectivity & Range
Battery & Charging
Certification & Controls
Why Blackwire 3320 Beats Accentum Plus (and Vice Versa)
Why Blackwire 3320 beats Accentum Plus
- Better voice & mic clarity: 7.1 vs 5.5 out of 10
- Weight: 131 g vs 227 g
- Frequency Response: 20 Hz - 20 kHz vs 10 Hz - 22 kHz
- Microphone Setup: Noise-cancelling boom, 100 Hz - 10 kHz vs 2 MEMS mics, beamforming
- Call Noise Reduction: Yes (noise-cancelling microphone) vs Beamforming
- Boom Mic: Yes (flexible boom, 280° rotation, 135 mm) vs No
Why Accentum Plus beats Blackwire 3320
- Better comfort & ergonomics: 9.8 vs 9.3 out of 10
- Driver Size: 37 mm vs 32 mm
- Microphones: 2 vs 1
- Mic Frequency Response: 50 Hz - 8 kHz vs 100 Hz - 10 kHz
Review-score leads of 0.5+ points out of 10 first, then specs where only one comes out ahead.
Full Specifications
General
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| Best For | Desk users | Android users |
| Wearing Style | On-ear stereo headband | Over-ear (around-the-ear) |
Design & Build
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| Weight | 131 g Better | 227 g |
| Ear Cushions | Foam | — |
| Colors | Black | Black, White |
| Dimensions | 166 x 40 x 199 mm | 165 x 195 x 48 mm (folded flat) |
Audio
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| Driver Size | 32 mm | 37 mm Better |
| Frequency Response | 20 Hz - 20 kHz Better | 10 Hz - 22 kHz |
| Bluetooth Codecs | — | SBC, AAC, aptX, aptX Adaptive |
| Driver Type | — | Dynamic |
| Impedance | 32 Ω | 560 Ω |
| Sensitivity | — | 106 dB SPL (1 kHz / 0 dBFS) |
| Wired Listening | — | Yes (aux cable included) |
| Stereo / Mono | Stereo | Stereo |
| Speaker Bandwidth (Calls) | 20 Hz - 20 kHz | — |
Noise Cancelling
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| Noise Cancelling | None | Hybrid adaptive ANC |
| Active Noise Cancelling | — | Yes |
| Adaptive ANC | — | Yes |
Microphone
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| Microphones | 1 | 2 Better |
| Microphone Setup | Noise-cancelling boom, 100 Hz - 10 kHz Better | 2 MEMS mics, beamforming |
| Call Noise Reduction | Yes (noise-cancelling microphone) Better | Beamforming |
| Boom Mic | Yes (flexible boom, 280° rotation, 135 mm) Better | No |
| Mute Control | Inline mute button | — |
| Mic Frequency Response | 100 Hz - 10 kHz | 50 Hz - 8 kHz Better |
| Mic Pickup Pattern | — | Beamforming |
Battery & Charging
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| Talk Time | — | 50 h |
| Charging Time | — | 3.5 h |
| Fast Charging | — | Yes (10 min = 5 h) |
| Music Time | — | 50 h |
| Charging Port | — | USB-C |
| Battery Capacity | — | 800 mAh |
Connectivity
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| Connection | Wired USB-C with USB-A adapter Better | Bluetooth, 3.5 mm aux |
| Bluetooth Version | — | 5.2 |
| Certifications | Microsoft Teams, Works With Chromebook | — |
| Bluetooth Profiles | — | A2DP, AVRCP, HFP, HSP, GATT |
| USB Audio | Yes | — |
| Cable Length | 2.18 m | — |
Controls & App
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| Controls | Inline: call answer/end, mute, volume, Teams button | — |
| Management Software | Poly Lens | Sennheiser Smart Control |
In the Box
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| In the Box | Headset, USB-C to USB-A adapter, user guide | Headphones, USB-C cable, carry case, auxiliary cable, quick guide |
| Warranty | 2-year limited | — |
| Carry Case | — | Yes (carry case) |
Identifiers
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| Model Number | 8X220AA | — |
Compatibility
| Blackwire 3320 | Accentum Plus | |
|---|---|---|
| OS Compatibility | Windows 11, Windows 10, macOS, Android, iOS (USB-C) | — |
Takeaways
- It's a tie on our rating (4/5) between Blackwire 3320 and Accentum Plus, so choose on the rows that matter most to you.
- Choose Blackwire 3320 for desk users.
- Choose Accentum Plus for android users.
Pros and Cons
Blackwire 3320
PROS
- Noise-cancelling boom mic, 280° rotation
- USB-C with USB-A adapter
- Teams and Works With Chromebook certified
- SoundGuard Digital
CONS
- No ANC
- Wired only
Accentum Plus
PROS
- Up to 50 h with ANC
- Hybrid adaptive ANC
- aptX Adaptive support
- Light at 227 g, folds flat
CONS
- Only 2 microphones
- No LDAC
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Accentum Plus vs H390- Accentum Plus vs Zone Vibe 100
- Accentum Plus vs Momentum 4
Quick Verdict
- Blackwire 3320 8.2Best overallLeads in Voice & Mic Clarity
- Accentum Plus 7.9Leads in Comfort & Ergonomics