Side by side comparison and review of Koss UR 23i and harman/kardon FLY ANC. 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 | harman/kardon FLY ANC |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 281 g | |
| Colour | White | Black | Black | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Koss UR 23i | harman/kardon FLY ANC |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | - | Yes | harman/kardon FLY ANC are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 16 - 22000 Hz | harman/kardon FLY ANC offer a larger frequency range than Koss UR 23i. |
| Max Input Power | - | 30 mW | |
| Sensitivity | 94 dB | 100 dB/mW | harman/kardon FLY ANC have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Koss UR 23i | harman/kardon FLY ANC |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Sensitivity | - | -21 dBV/Pascal |
| CABLE | Koss UR 23i | harman/kardon FLY ANC |
|---|
| Cable Type | Headphones cable - 1.22 m | USB charge cable - detachable Audio cable - detachable |
|---|
| FEATURES | Koss UR 23i | harman/kardon FLY ANC |
|---|
| Internet of Things (IoT) Compatible | - | Yes | |
|---|---|---|---|
| Intelligent Assistant | - | Google Assistant, Alexa |
| BATTERY AND CHARGING | Koss UR 23i | harman/kardon FLY ANC |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 700 mAh | |
| Battery Life | - | 30 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / Bluetooth): up to 20 hours Continuous playback (noise cancelling OFF / Bluetooth): up to 30 hours |
| CONNECTIONS | Koss UR 23i | harman/kardon FLY ANC |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | Koss UR 23i | harman/kardon FLY ANC |
|---|
| Included Accessories | - | Carrying pouch, airplane adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - 1 year |
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