Side by side comparison and review of Koss UR 23i and beyerdynamic Amiron Wireless. 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 | beyerdynamic Amiron Wireless |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 380 g | |
| Colour | White | Black | - | |
| Recommended Use | Portable electronics | - | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | beyerdynamic Amiron Wireless |
|---|
| 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 Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), General Audio/Video Distribution Profile (GAVDP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, aptX HD, apt-X LL | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 5 - 40000 Hz | beyerdynamic Amiron Wireless offer a larger frequency range than Koss UR 23i. |
| Max Input Power | - | 200 mW | |
| Total Harmonic Distortion (THD) | - | <0.05% | |
| Sensitivity | 94 dB | - | |
| Impedance | 34 Ohm | 32 Ohm | |
| Max Sound Pressure | - | 100 dB |
| MICROPHONE | Koss UR 23i | beyerdynamic Amiron Wireless |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - |
| CABLE | Koss UR 23i | beyerdynamic Amiron Wireless |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - with remote control and mic - 1.2 m USB-C charge cable |
|---|
| BATTERY AND CHARGING | Koss UR 23i | beyerdynamic Amiron Wireless |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 1050 mAh | |
| Battery Life | - | 30 hour(s) | |
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Koss UR 23i | beyerdynamic Amiron Wireless |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | Koss UR 23i | beyerdynamic Amiron Wireless |
|---|
| Included Accessories | - | Hard case | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | - |
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