In depth comparison and review of Koss UR 23i and Poly Voyager Surround 80-M UC. 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 | Poly Voyager Surround 80-M UC |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - Bluetooth - wireless - USB-C via Bluetooth adapter | |
|---|---|---|---|
| Series | - | Voyager Surround 80 series | |
| Height | - | 18.1 cm | |
| Width | - | 19.1 cm | |
| Depth | - | 7.7 cm | |
| Weight | - | 275 g | |
| Colour | White | Black | Black | |
| Earpad Material | - | Artificial leather | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Koss UR 23i | Poly Voyager Surround 80-M UC |
|---|
| Headphones Form Factor | Full size | Over ear | |
|---|---|---|---|
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.3 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Audio/Video Distribution Transport Protocol (AVDTP) | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Sensitivity | 94 dB | 132 dB | Poly Voyager Surround 80-M UC have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | - | |
| Diaphragm | - | 40 mm | |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 2 | Poly Voyager Surround 80-M UC have the ability to connect to multiple devices simultaneously. |
| Features | - | SoundGuard DIGITAL Technology |
| MICROPHONE | Koss UR 23i | Poly Voyager Surround 80-M UC |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Frequency Response | - | 20 - 16000 Hz | |
| Sensitivity | - | -37 dB | |
| Microphones Included | - | 10 |
| REMOTE CONTROL | Koss UR 23i | Poly Voyager Surround 80-M UC |
|---|
| Controls | - | Volume, power on/off, answer/end, play/pause |
|---|
| CABLE | Koss UR 23i | Poly Voyager Surround 80-M UC |
|---|
| Cable Type | Headphones cable - 1.22 m | - |
|---|
| BATTERY AND CHARGING | Koss UR 23i | Poly Voyager Surround 80-M UC |
|---|
| Battery Type | - | Headset battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | - | 24 hours | |
| Battery Life Details | - | Continuous playback: up to 24 hours Continuous talk: up to 21 hours |
|
| Charging Time | - | 1 hours |
| CONNECTIONS | Koss UR 23i | Poly Voyager Surround 80-M UC |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | Koss UR 23i | Poly Voyager Surround 80-M UC |
|---|
| Included Accessories | - | Carrying case, USB charging cable, USB-C to USB-A adapter, USB-C to audio cable, BT700 Bluetooth USB-C adapter | |
|---|---|---|---|
| Compatibility | - | Mac, Windows | |
| Software Certification | - | Certified for Microsoft Teams | |
| Supported Host Device OS | - | macOS, Android, iOS, Windows | |
| Service & Support | Limited warranty - lifetime | - |
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