In depth comparison and review of Koss UR 23i and Sony h.ear on 2 Wireless NC WH-H900N. 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 | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Weight | - | 290 g | |
| Colour | White | Black | Moonlight blue | Greyish black | Horizon green | Pale gold | Twilight red | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m | |
| High-Resolution Audio | - | Yes |
| SOUND QUALITY | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Sony h.ear on 2 Wireless NC WH-H900N can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, aptX HD, LDAC | |
| Active Noise Cancelling | - | Yes | Sony h.ear on 2 Wireless NC WH-H900N are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Digital Sound Enhancement Engine HX (DSEE HX) | |
| Frequency Response | 20 - 20000 Hz | 5 - 40000 Hz | Sony h.ear on 2 Wireless NC WH-H900N offer a larger frequency range than Koss UR 23i. |
| Sensitivity | 94 dB | 103 dB/mW | Sony h.ear on 2 Wireless NC WH-H900N have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 32 Ohm | |
| Diaphragm | - | Titanium - 40 mm | |
| Magnet Material | - | Neodymium |
| MICROPHONE | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 50 - 8000 Hz |
| REMOTE CONTROL | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Controls | - | Volume, noise-cancellation suspend button |
|---|
| CABLE | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - single-sided - L shaped - 1.2 m Micro-USB cable - 50 cm |
|
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Detachable Cable | - | Yes | |
| Plated Connector | - | Gold |
| FEATURES | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Intelligent Assistant | - | Siri, Google Assistant |
|---|
| BATTERY AND CHARGING | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 34 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON): up to 28 hours Continuous playback (noise cancelling OFF): up to 34 hours Standby (noise cancelling ON): up to 48 hours Standby (noise cancelling OFF): up to 200 hours |
|
| Standby Time | - | 200 hours | |
| Charging Time | - | 6 hour(s) |
| WIRELESS LINK | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Radio Frequency Range | - | 2.4GHz, 2.4 - 2.4835GHz |
|---|
| CONNECTIONS | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm 4-pole) USB (power only) (5 pin Micro-USB Type B (power only)) |
|---|
| OTHERS | Koss UR 23i | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Included Accessories | - | Carrying pouch | |
|---|---|---|---|
| Compatibility | - | iPhone, iPod, Android phone | |
| Service & Support | Limited warranty - lifetime | - |
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