Detailed comparison and review of Poly Blackwire 8225-M and Razer Kaira. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Poly Blackwire 8225-M | Razer Kaira |
|---|
| Product Type | Headset - wired - USB-A | Headset - 2.4/5 GHz - wireless | |
|---|---|---|---|
| Weight | 186 g | 293 g | Poly Blackwire 8225-M are lighter than Poly Blackwire 8225-M headphones. |
| Earpad Material | - | FlowKnit memory foam | |
| Recommended Use | - | Game console, computer | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Poly Blackwire 8225-M | Razer Kaira |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | Yes | Yes | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | 2.4/5 GHz radio frequency | |
| Active Noise Cancelling | Yes | - | Poly Blackwire 8225-M are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Hybrid ANC | - | |
| Noise Isolating | - | Yes | Razer Kaira are equipped with a noise isolating function. |
| Sound Output Mode | - | Stereo | |
| Sound Effects | - | Windows Sonic surround sound | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 84 dB | 108 dB | Razer Kaira have higher sensitivity than Poly Blackwire 8225-M. |
| Impedance | 32 Ohm | 32 Ohm | |
| Diaphragm | 32 mm | 50 mm | Razer Kaira have a thicker diaphragm than Poly Blackwire 8225-M. |
| Magnet Material | - | Razer Triforce titanium | |
| Features | SoundGuard DIGITAL Technology | - |
| MICROPHONE | Poly Blackwire 8225-M | Razer Kaira |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional (HyperClear flexible cardioid) | |
| Noise Cancelling | Yes | - | Poly Blackwire 8225-M microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | 100 - 10000 Hz | The frequency response of the microphones in both headphones is the same. |
| Sensitivity | -35 dBV/Pascal | -54 dB | |
| Signal-To-Noise Ratio | - | 60 dB |
| REMOTE CONTROL | Poly Blackwire 8225-M | Razer Kaira |
|---|
| Controls | Mute, volume, answer/end, Microsoft Teams button | Volume, power on/off, microphone on/mute switch, status indicator, pair mode, game/chat balance |
|---|
| CABLE | Poly Blackwire 8225-M | Razer Kaira |
|---|
| Cable Type | Headset cable - 2.2 m | - | |
|---|---|---|---|
| Cable Length | 2.2 m | - |
| FEATURES | Poly Blackwire 8225-M | Razer Kaira |
|---|
| Features | - | Xbox Wireless technology |
|---|
| BATTERY AND CHARGING | Poly Blackwire 8225-M | Razer Kaira |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 15 hour(s) |
| CONNECTIONS | Poly Blackwire 8225-M | Razer Kaira |
|---|
| Connector Type | Headset (4 PIN USB Type A) | - |
|---|
| OTHERS | Poly Blackwire 8225-M | Razer Kaira |
|---|
| Service & Support | - | Limited warranty - 2 years |
|---|
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