In depth comparison and review of beyerdynamic Amiron Wireless Copper and Poly Blackwire 8225-M. 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 | beyerdynamic Amiron Wireless Copper | Poly Blackwire 8225-M |
|---|
| Product Type | Headphones - Bluetooth - wireless - 3.5 mm jack | Headset - wired - USB-A | |
|---|---|---|---|
| Weight | 400 g | 186 g | Poly Blackwire 8225-M are lighter than beyerdynamic Amiron Wireless Copper headphones. |
| Colour | Copper | - | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | beyerdynamic Amiron Wireless Copper | Poly Blackwire 8225-M |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.2 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), General Audio/Video Distribution Profile (GAVDP) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX, aptX HD, apt-X LL | - | |
| Active Noise Cancelling | - | Yes | Poly Blackwire 8225-M are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 5 - 40000 Hz | 20 - 20000 Hz | beyerdynamic Amiron Wireless Copper offer a larger frequency range than Poly Blackwire 8225-M. |
| Max Input Power | 200 mW | - | |
| Total Harmonic Distortion (THD) | <0.05% | - | |
| Sensitivity | - | 84 dB | |
| Impedance | 32 Ohm | 32 Ohm | |
| Max Sound Pressure | 100 dB | - | |
| Diaphragm | - | 32 mm | |
| Features | - | SoundGuard DIGITAL Technology |
| MICROPHONE | beyerdynamic Amiron Wireless Copper | Poly Blackwire 8225-M |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Noise Cancelling | - | Yes | Poly Blackwire 8225-M microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -35 dBV/Pascal |
| REMOTE CONTROL | beyerdynamic Amiron Wireless Copper | Poly Blackwire 8225-M |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track, reject call, voice assistant | Mute, volume, answer/end, Microsoft Teams button |
|---|
| CABLE | beyerdynamic Amiron Wireless Copper | Poly Blackwire 8225-M |
|---|
| Cable Type | Headphones cable - detachable - with remote control and mic - 1.2 m | Headset cable - 2.2 m | |
|---|---|---|---|
| Cable Length | 1.2 m | 2.2 m |
| BATTERY AND CHARGING | beyerdynamic Amiron Wireless Copper | Poly Blackwire 8225-M |
|---|
| Battery Type | Headphone battery rechargeable | - | |
|---|---|---|---|
| Battery Capacity | 1050 mAh | - | |
| Battery Life | 30 hour(s) | - | |
| Charging Time | 2 hour(s) | - |
| CONNECTIONS | beyerdynamic Amiron Wireless Copper | Poly Blackwire 8225-M |
|---|
| Connector Type | - | Headset (4 PIN USB Type A) |
|---|
| OTHERS | beyerdynamic Amiron Wireless Copper | Poly Blackwire 8225-M |
|---|
| Included Accessories | Hard case, USB-C to USB-A charging cable | - |
|---|
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