Side by side comparison and review of Koss UR 23i and Philips TAH4205RD. 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 | Philips TAH4205RD |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 18.5 cm | |
| Width | - | 16.5 cm | |
| Depth | - | 4 cm | |
| Weight | - | 150 g | |
| Colour | White | Black | Red | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | Philips TAH4205RD |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Philips TAH4205RD 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) | |
| Noise Isolating | - | Yes | Philips TAH4205RD are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 94 dB | - | |
| Impedance | 34 Ohm | 32 Ohm | |
| Diaphragm | - | PET - 32 mm | |
| Magnet Material | - | NdFeB |
| MICROPHONE | Koss UR 23i | Philips TAH4205RD |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - |
| REMOTE CONTROL | Koss UR 23i | Philips TAH4205RD |
|---|
| Controls | - | Volume control, reject call |
|---|
| CABLE | Koss UR 23i | Philips TAH4205RD |
|---|
| Cable Type | Headphones cable - 1.22 m | USB-C cable - detachable |
|---|
| BATTERY AND CHARGING | Koss UR 23i | Philips TAH4205RD |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Life | - | 29 hour(s) | |
| Battery Life Details | - | Standby: up to 166 hours Continuous talk: up to 21 hours Continuous playback: up to 29 hours |
|
| Standby Time | - | 166 hours |
| CONNECTIONS | Koss UR 23i | Philips TAH4205RD |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | USB (power only) Bluetooth |
|---|
| OTHERS | Koss UR 23i | Philips TAH4205RD |
|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - 1 year |
|---|
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