In depth comparison and review of Koss UR 23i and Sony MDR ZX220BT. 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 MDR ZX220BT |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Weight | - | 130 g | |
| Colour | White | Black | Grey | Blue | Black | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | Sony MDR ZX220BT |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Sony MDR ZX220BT 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) | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 94 dB | 100 dB | Sony MDR ZX220BT have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 24 Ohm | |
| Diaphragm | - | 30 mm | |
| Magnet Material | - | Neodymium |
| MICROPHONE | Koss UR 23i | Sony MDR ZX220BT |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | - | Electret condenser | |
| Frequency Response | - | 100 - 4000 Hz | |
| Audio Input Details | - | Omni-directional |
| REMOTE CONTROL | Koss UR 23i | Sony MDR ZX220BT |
|---|
| Controls | - | Volume control |
|---|
| CABLE | Koss UR 23i | Sony MDR ZX220BT |
|---|
| Cable Type | Headphones cable - 1.22 m | Micro-USB cable - detachable |
|---|
| BATTERY AND CHARGING | Koss UR 23i | Sony MDR ZX220BT |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | - | 8 hour(s) | |
| Standby Time | - | 200 hours | |
| Charging Time | - | 2.5 hour(s) |
| WIRELESS LINK | Koss UR 23i | Sony MDR ZX220BT |
|---|
| Transmission Range | - | 10 m | |
|---|---|---|---|
| Modulation Type | - | FHSS | |
| Radio Frequency Range | - | 2.4 - 2.4835GHz |
| CONNECTIONS | Koss UR 23i | Sony MDR ZX220BT |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Bluetooth USB |
|---|
| OTHERS | Koss UR 23i | Sony MDR ZX220BT |
|---|
| Service & Support | Limited warranty - lifetime | - |
|---|
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