Side by side comparison and review of Poly Blackwire 325 and JVC HA S91N. 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 325 | JVC HA S91N |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - Bluetooth - wireless, wired | |
|---|---|---|---|
| Series | 300 Series | - | |
| Weight | - | 198 g | |
| Colour | - | Black | |
| Headband Material | Metal | - | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Poly Blackwire 325 | JVC HA S91N |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Foldable | - | Yes | JVC HA S91N can be folded. |
| Connectivity Technology | Wired | Wireless, wired | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| 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 | JVC HA S91N are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | - | |
| Sound Effects | - | Ambient Sound Mode | |
| Frequency Response | 20 - 20000 Hz | 10 - 22000 Hz | JVC HA S91N offer a larger frequency range than Poly Blackwire 325. |
| Impedance | - | 32 Ohm | |
| Diaphragm | - | 40 mm | |
| Magnet Material | - | Neodymium | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325 | JVC HA S91N |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire 325 | JVC HA S91N |
|---|
| Controls | Mute, volume, answer/end | Volume, power on/off, multiple function button, noise-cancellation on/off |
|---|
| CABLE | Poly Blackwire 325 | JVC HA S91N |
|---|
| Cable Type | Headset cable - 2.13 m | Headphones cable - detachable - 1.2 m USB-C charge cable |
|
|---|---|---|---|
| Cable Length | 2.13 m | 1.2 m | |
| Detachable Cable | - | Yes | |
| Plated Connector | - | Gold |
| FEATURES | Poly Blackwire 325 | JVC HA S91N |
|---|
| Internet of Things (IoT) Compatible | - | Yes | |
|---|---|---|---|
| Voice Control | - | Indirect | |
| Additional Functions | DSP | - |
| BATTERY AND CHARGING | Poly Blackwire 325 | JVC HA S91N |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Life | - | 42 hour(s) | |
| Battery Life Details | - | Continuous playback (active noise-cancelling off): up to 42 hours Continuous playback (active noise-cancelling on): up to 37 hours |
|
| Charging Time | - | 3 hour(s) |
| CONNECTIONS | Poly Blackwire 325 | JVC HA S91N |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
Bluetooth Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Blackwire 325 | JVC HA S91N |
|---|
| Included Accessories | - | Carrying pouch | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | 2-year warranty |
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