Side by side comparison and review of Koss UR 23i and Audio-Technica ATH SR50BT. 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 | Audio-Technica ATH SR50BT |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - 3.5 mm jack | |
|---|---|---|---|
| Weight | - | 180 g | |
| Colour | White | Black | Black | Brown-grey | |
| Earpad Material | - | Memory foam | |
| Recommended Use | Portable electronics | - | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | Audio-Technica ATH SR50BT |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Audio-Technica ATH SR50BT can be folded. |
| Connectivity Technology | Wired | Wireless | |
| 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, AAC, aptX | |
| Noise Isolating | - | Yes | Audio-Technica ATH SR50BT are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 5 - 40000 Hz | Audio-Technica ATH SR50BT offer a larger frequency range than Koss UR 23i. |
| Max Input Power | - | 1500 mW | |
| Sensitivity | 94 dB | 98 dB/mW | Audio-Technica ATH SR50BT have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | - | |
| Diaphragm | - | 45 mm | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Koss UR 23i | Audio-Technica ATH SR50BT |
|---|
| Type | On-cable | On-cable | |
|---|---|---|---|
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 50 - 4000 Hz | |
| Sensitivity | - | -40 dB |
| REMOTE CONTROL | Koss UR 23i | Audio-Technica ATH SR50BT |
|---|
| Controls | - | Volume |
|---|
| CABLE | Koss UR 23i | Audio-Technica ATH SR50BT |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - L shaped - 1.2 m USB charge cable - detachable |
|
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Detachable Cable | - | Yes |
| BATTERY AND CHARGING | Koss UR 23i | Audio-Technica ATH SR50BT |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Life | - | 25 hour(s) | |
| Standby Time | - | 1000 hours | |
| Charging Time | - | 5 hour(s) |
| CONNECTIONS | Koss UR 23i | Audio-Technica ATH SR50BT |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | Koss UR 23i | Audio-Technica ATH SR50BT |
|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - 2 years |
|---|
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