Side by side comparison and review of Koss UR 23i 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 | Koss UR 23i | JVC HA S91N |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless, wired | |
|---|---|---|---|
| Weight | - | 198 g | |
| Colour | White | Black | Black | |
| Recommended Use | Portable electronics | - | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | JVC HA S91N |
|---|
| Headphones Form Factor | Full size | 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 Koss UR 23i. |
| Sensitivity | 94 dB | - | |
| Impedance | 34 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm | |
| Magnet Material | - | Neodymium |
| MICROPHONE | Koss UR 23i | JVC HA S91N |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - |
| REMOTE CONTROL | Koss UR 23i | JVC HA S91N |
|---|
| Controls | - | Volume, power on/off, multiple function button, noise-cancellation on/off |
|---|
| CABLE | Koss UR 23i | JVC HA S91N |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - 1.2 m USB-C charge cable |
|
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Detachable Cable | - | Yes | |
| Plated Connector | - | Gold |
| FEATURES | Koss UR 23i | JVC HA S91N |
|---|
| Internet of Things (IoT) Compatible | - | Yes | |
|---|---|---|---|
| Voice Control | - | Indirect |
| BATTERY AND CHARGING | Koss UR 23i | 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 | Koss UR 23i | JVC HA S91N |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Bluetooth Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Koss UR 23i | JVC HA S91N |
|---|
| Included Accessories | - | Carrying pouch | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | 2-year warranty |
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