Side by side comparison and review of Poly Blackwire C725-UC and JVC TINYPHONES HA-KD9BT. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Poly Blackwire C725-UC | JVC TINYPHONES HA-KD9BT |
|---|
| Product Type | Headset - wired - USB | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | 700 Series | - | |
| Weight | - | 120 g | |
| Design | - | Kids | |
| Recommended Use | Computer | - |
| SOUND QUALITY | Poly Blackwire C725-UC | JVC TINYPHONES HA-KD9BT |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wired | Wireless | |
| 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 C725-UC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | SoundGuard | - | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | - | 85 dB | |
| Impedance | - | 20 Ohm | |
| Magnet Material | - | Ferrite | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire C725-UC | JVC TINYPHONES HA-KD9BT |
|---|
| Form Factor | Headset microphone | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Frequency Response | 100 - 8000 Hz | - |
| REMOTE CONTROL | Poly Blackwire C725-UC | JVC TINYPHONES HA-KD9BT |
|---|
| Controls | Mute, volume, answer/end | Volume, power on/off |
|---|
| CABLE | Poly Blackwire C725-UC | JVC TINYPHONES HA-KD9BT |
|---|
| Cable Type | USB cable - 2.04 m | USB charge cable - detachable | |
|---|---|---|---|
| Cable Length | 2.04 m | - |
| BATTERY AND CHARGING | Poly Blackwire C725-UC | JVC TINYPHONES HA-KD9BT |
|---|
| Battery Type | - | 1 x headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 12 hour(s) | |
| Charging Time | - | 3 hour(s) | |
| Included Qty | - | 1 |
| CONNECTIONS | Poly Blackwire C725-UC | JVC TINYPHONES HA-KD9BT |
|---|
| Connector Type | USB (4 PIN USB Type A) | Bluetooth USB (power only) (micro-USB) |
|---|
| OTHERS | Poly Blackwire C725-UC | JVC TINYPHONES HA-KD9BT |
|---|
| Included Accessories | Carrying case | Stickers | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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