Side by side comparison and review of Koss UR 23i and Bose QuietComfort 35. 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 | Bose QuietComfort 35 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Height | - | 18.03 cm | |
| Width | - | 17.02 cm | |
| Depth | - | 8.13 cm | |
| Weight | - | 240 g | |
| Colour | White | Black | Blue | Black | Silver | |
| Body Material | - | Plastic, metal, leather, alcantara | |
| Earpad Material | - | Leather | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | Bose QuietComfort 35 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Foldable | - | Yes | Bose QuietComfort 35 can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | - | Yes | Bose QuietComfort 35 are equipped with active noice cancellation. |
| Noise Isolating | - | Yes | Bose QuietComfort 35 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Sensitivity | 94 dB | - | |
| Impedance | 34 Ohm | - |
| MICROPHONE | Koss UR 23i | Bose QuietComfort 35 |
|---|
| Type | On-cable | - |
|---|
| CABLE | Koss UR 23i | Bose QuietComfort 35 |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable USB charge cable - detachable |
|
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Detachable Cable | - | Yes | |
| Plated Connector | - | Gold |
| BATTERY AND CHARGING | Koss UR 23i | Bose QuietComfort 35 |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | - | 20 hour(s) | |
| Charging Time | - | 2.25 hour(s) |
| WIRELESS LINK | Koss UR 23i | Bose QuietComfort 35 |
|---|
| Transmission Range | - | 10 m |
|---|
| CONNECTIONS | Koss UR 23i | Bose QuietComfort 35 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Koss UR 23i | Bose QuietComfort 35 |
|---|
| Included Accessories | - | Carrying case, airplane adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - 1 year |
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