Detailed comparison and review of Koss UR 23i and Bang & Olufsen Beoplay H9i. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Koss UR 23i | Bang & Olufsen Beoplay H9i |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 20 cm | |
| Width | - | 19.5 cm | |
| Depth | - | 5.2 cm | |
| Weight | - | 285 g | |
| Colour | White | Black | Natural | Black | Pine | |
| Body Material | - | Fabric, rubber, anodised aluminium, polymer | |
| Earpad Material | - | Leather, memory foam | |
| Headband Material | - | Leather | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Koss UR 23i | Bang & Olufsen Beoplay H9i |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Bluetooth Audio Codec | - | AAC | |
| Active Noise Cancelling | - | Yes | Bang & Olufsen Beoplay H9i are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 22000 Hz | Bang & Olufsen Beoplay H9i offer a larger frequency range than Koss UR 23i. |
| Sensitivity | 94 dB | 95 dB/mW | Bang & Olufsen Beoplay H9i have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 24 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Koss UR 23i | Bang & Olufsen Beoplay H9i |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Koss UR 23i | Bang & Olufsen Beoplay H9i |
|---|
| Controls | - | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode, noise-cancellation suspend button, audio transparency |
|---|
| CABLE | Koss UR 23i | Bang & Olufsen Beoplay H9i |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - 1.2 m USB to USB-C cable - 1.25 m |
|
|---|---|---|---|
| Cable Length | - | 1.2 m |
| FEATURES | Koss UR 23i | Bang & Olufsen Beoplay H9i |
|---|
| Sensors | - | Proximity sensor |
|---|
| BATTERY AND CHARGING | Koss UR 23i | Bang & Olufsen Beoplay H9i |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 770 mAh | |
| Battery Life | - | 24 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / Bluetooth): up to 18 hours Continuous playback (noise cancelling OFF): up to 23 hours Continuous playback (noise cancelling ON / cable connection): up to 24 hours |
|
| Charging Time | - | 2.5 hour(s) |
| CONNECTIONS | Koss UR 23i | Bang & Olufsen Beoplay H9i |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | Koss UR 23i | Bang & Olufsen Beoplay H9i |
|---|
| Included Accessories | - | Carrying pouch, airplane adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - parts and labour - 2 years |
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