In depth comparison and review of Poly Blackwire 3325 and Shure AONIC 40. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
DESIGN AND DIMENSIONS | Poly Blackwire 3325 | Shure AONIC 40 |
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Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - Bluetooth - wireless - 3.5 mm jack, USB-C | |
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Series | 3300 Series | - | |
Height | 18.6 cm | - | |
Width | 21.6 cm | - | |
Depth | 5.6 cm | - | |
Weight | 130 g | 313 g | Poly Blackwire 3325 are lighter than Poly Blackwire 3325 headphones. |
Colour | - | Black | White, tan | |
Earpad Material | Leatherette | - | |
Protection | Hearing protection | - | |
Recommended Use | - | Portable electronics | |
Bluetooth Range (Operating Distance) | - | 10 m |
SOUND QUALITY | Poly Blackwire 3325 | Shure AONIC 40 |
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Headphones Form Factor | On-ear | Full size | |
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Headphones Technology | - | Dynamic | |
Adjustable Headband | Yes | - | |
Connectivity Technology | Wired | Wireless | |
Wireless Technology | - | Bluetooth | |
Bluetooth Version | - | Bluetooth 5.0 | |
Bluetooth Audio Codec | - | SBC, AAC, aptX, aptX HD | |
Active Noise Cancelling | - | Yes | Shure AONIC 40 are equipped with active noice cancellation. |
Sound Output Mode | Stereo | Stereo | |
Sound Effects | - | Bass Boost, Loudness, Treble Boost, Vocal Boost, De-ess, Low Boost | |
Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
Max Input Power | - | 500 mW | |
Sensitivity | 94 dB | 94.7 dB/mW | Both headphones offer the same sensitivity. |
Impedance | 32 Ohm | 31 Ohm | |
Diaphragm | 32 mm | 40 mm | Shure AONIC 40 have a thicker diaphragm than Poly Blackwire 3325. |
Simultaneously Connectable Devices Qty (Multipoint) | - | 2 | Shure AONIC 40 have the ability to connect to multiple devices simultaneously. |
Magnet Material | - | Neodymium magnet | |
Features | SoundGuard Technology | Environment mode | |
In-Cord Volume Control | Yes | - |
MICROPHONE | Poly Blackwire 3325 | Shure AONIC 40 |
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Form Factor | - | Built-in | |
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Type | Boom | - | |
Noise Cancelling | Yes | - | Poly Blackwire 3325 microphone can cancel out ambient noise. |
Frequency Response | 100 - 10000 Hz | - | |
Sensitivity | -38 dB | - |
REMOTE CONTROL | Poly Blackwire 3325 | Shure AONIC 40 |
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Controls | Mute, volume, answer/end | Mute, volume, power on/off, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, ANC on/off, environment mode |
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CABLE | Poly Blackwire 3325 | Shure AONIC 40 |
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Cable Type | Headset cable | Audio cable - detachable USB-C cable - detachable |
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BATTERY AND CHARGING | Poly Blackwire 3325 | Shure AONIC 40 |
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Battery Type | - | Headphone battery rechargeable | |
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Battery Life | - | 25 hour(s) |
CONNECTIONS | Poly Blackwire 3325 | Shure AONIC 40 |
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Connector Type | USB (4 PIN USB Type A) Headset (mini-phone 3.5mm) |
Audio input (mini-phone stereo 3.5 mm) USB (24 pin USB-C) |
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OTHERS | Poly Blackwire 3325 | Shure AONIC 40 |
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Included Accessories | Carrying pouch | Carrying case | |
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Compatibility | - | iPhone, iPad, Android phone | |
Software Certification | Certified for Microsoft Teams | - | |
Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |