Side by side comparison and review of Koss UR 23i and Sennheiser ACCENTUM 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 | Sennheiser ACCENTUM Wireless |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 222 g | |
| Colour | White | Black | Black | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Koss UR 23i | Sennheiser ACCENTUM Wireless |
|---|
| Headphones Form Factor | Full size | Full size binaural | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.2 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Generic Attribute Profile (GATT) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX HD, mSBC, CVSD | |
| Active Noise Cancelling | - | Yes | Sennheiser ACCENTUM Wireless are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 10 - 22000 Hz | Sennheiser ACCENTUM Wireless offer a larger frequency range than Koss UR 23i. |
| Total Harmonic Distortion (THD) | - | 0.3% | |
| Sensitivity | 94 dB | 106 dB | Sennheiser ACCENTUM Wireless have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | - | |
| Diaphragm | - | 37 mm |
| MICROPHONE | Koss UR 23i | Sennheiser ACCENTUM Wireless |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | - | Beamforming | |
| Frequency Response | - | 50 - 8000 Hz |
| CABLE | Koss UR 23i | Sennheiser ACCENTUM Wireless |
|---|
| Cable Type | Headphones cable - 1.22 m | USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | Koss UR 23i | Sennheiser ACCENTUM Wireless |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 800 mAh | |
| Battery Life | - | 50 hour(s) | |
| Charging Time | - | 3 hour(s) |
| WIRELESS LINK | Koss UR 23i | Sennheiser ACCENTUM Wireless |
|---|
| Modulation Type | - | GFSK, 8-DPSK, 4-DQPSK | |
|---|---|---|---|
| Radio Frequency Range | - | 2.402 - 2.480GHz |
| CONNECTIONS | Koss UR 23i | Sennheiser ACCENTUM Wireless |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | Koss UR 23i | Sennheiser ACCENTUM Wireless |
|---|
| Service & Support | Limited warranty - lifetime | - |
|---|
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