In depth comparison and review of Poly Blackwire 325 and JVC TINYPHONES HA-KD7. 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 325 | JVC TINYPHONES HA-KD7 |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | 300 Series | - | |
| Weight | - | 110 g | |
| Headband Material | Metal | - | |
| Design | - | Kids | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Poly Blackwire 325 | JVC TINYPHONES HA-KD7 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 15 - 23000 Hz | JVC TINYPHONES HA-KD7 offer a larger frequency range than Poly Blackwire 325. |
| Max Input Power | - | 200 mW | |
| Sensitivity | - | 85 dB/mW | |
| Diaphragm | - | 30 mm | |
| Magnet Material | - | Ferrite | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325 | JVC TINYPHONES HA-KD7 |
|---|
| Type | Boom | - | |
|---|---|---|---|
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire 325 | JVC TINYPHONES HA-KD7 |
|---|
| Controls | Mute, volume, answer/end | - |
|---|
| CABLE | Poly Blackwire 325 | JVC TINYPHONES HA-KD7 |
|---|
| Cable Type | Headset cable - 2.13 m | Headphones cable - 0.8 m | |
|---|---|---|---|
| Cable Length | 2.13 m | 0.8 m | |
| Plated Connector | - | Nickel |
| FEATURES | Poly Blackwire 325 | JVC TINYPHONES HA-KD7 |
|---|
| Additional Functions | DSP | - |
|---|
| CONNECTIONS | Poly Blackwire 325 | JVC TINYPHONES HA-KD7 |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Blackwire 325 | JVC TINYPHONES HA-KD7 |
|---|
| Included Accessories | - | Decorative stickers | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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