In depth comparison and review of JVC TINYPHONES HA-KD9BT and Poly Blackwire 8225. 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 | JVC TINYPHONES HA-KD9BT | Poly Blackwire 8225 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired - USB-C | |
|---|---|---|---|
| Weight | 120 g | 186 g | JVC TINYPHONES HA-KD9BT are lighter than JVC TINYPHONES HA-KD9BT headphones. |
| Design | Kids | - |
| SOUND QUALITY | JVC TINYPHONES HA-KD9BT | Poly Blackwire 8225 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| 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) | - | |
| Bluetooth Audio Codec | SBC | - | |
| Active Noise Cancelling | - | Yes | Poly Blackwire 8225 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 85 dB | 84 dB | JVC TINYPHONES HA-KD9BT have higher sensitivity than Poly Blackwire 8225. |
| Impedance | 20 Ohm | 32 Ohm | |
| Diaphragm | - | 32 mm | |
| Magnet Material | Ferrite | - | |
| Features | - | SoundGuard DIGITAL Technology |
| MICROPHONE | JVC TINYPHONES HA-KD9BT | Poly Blackwire 8225 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Noise Cancelling | - | Yes | Poly Blackwire 8225 microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -35 dBV/Pascal |
| REMOTE CONTROL | JVC TINYPHONES HA-KD9BT | Poly Blackwire 8225 |
|---|
| Controls | Volume, power on/off | Mute, volume, answer/end |
|---|
| CABLE | JVC TINYPHONES HA-KD9BT | Poly Blackwire 8225 |
|---|
| Cable Type | USB charge cable - detachable | Headset cable - 2.2 m | |
|---|---|---|---|
| Cable Length | - | 2.2 m |
| BATTERY AND CHARGING | JVC TINYPHONES HA-KD9BT | Poly Blackwire 8225 |
|---|
| Battery Type | 1 x headphone battery rechargeable | - | |
|---|---|---|---|
| Battery Life | 12 hour(s) | - | |
| Charging Time | 3 hour(s) | - | |
| Included Qty | 1 | - |
| CONNECTIONS | JVC TINYPHONES HA-KD9BT | Poly Blackwire 8225 |
|---|
| Connector Type | Bluetooth USB (power only) (micro-USB) |
Headset (USB Type-C) |
|---|
| OTHERS | JVC TINYPHONES HA-KD9BT | Poly Blackwire 8225 |
|---|
| Included Accessories | Stickers | - | |
|---|---|---|---|
| Software Certification | - | Zoom Certified |
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