In depth comparison and review of Sharkoon Rush ER2 and Poly Voyager 4220 Office (UC Series). 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 | Sharkoon Rush ER2 | Poly Voyager 4220 Office (UC Series) |
|---|
| Product Type | Headset - wired | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Series | - | UC Series | |
| Weight | 266 g | 150 g | Poly Voyager 4220 Office (UC Series) are lighter than Sharkoon Rush ER2 headphones. |
| Colour | White | Red | Green | Blue | - | |
| Recommended Use | Game console, portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Sharkoon Rush ER2 | Poly Voyager 4220 Office (UC Series) |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| 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. |
| Max Input Power | 100 mW | - | |
| Sensitivity | 92 dB | 94 dB | Poly Voyager 4220 Office (UC Series) have higher sensitivity than Sharkoon Rush ER2. |
| Impedance | 32 Ohm | 32 Ohm | |
| Diaphragm | 40 mm | 32 mm | Sharkoon Rush ER2 have a thicker diaphragm than Poly Voyager 4220 Office (UC Series). |
| Features | - | SoundGuard Technology |
| MICROPHONE | Sharkoon Rush ER2 | Poly Voyager 4220 Office (UC Series) |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional | |
| Frequency Response | 30 - 16000 Hz | - | |
| Audio Input Details | Omni-directional - 30 - 16000 Hz - Output Impedance 2.2 kOhm | - | |
| Sensitivity | -58 dB | - | |
| Impedance | 2.2 kOhm | - | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Sharkoon Rush ER2 | Poly Voyager 4220 Office (UC Series) |
|---|
| Controls | Volume control, microphone on/mute | Mute, volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | Sharkoon Rush ER2 | Poly Voyager 4220 Office (UC Series) |
|---|
| Cable Type | Headset cable - 1.1 m Headset cable - 2.5 m |
- |
|---|
| FEATURES | Sharkoon Rush ER2 | Poly Voyager 4220 Office (UC Series) |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | Sharkoon Rush ER2 | Poly Voyager 4220 Office (UC Series) |
|---|
| Battery Type | - | Headset battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 360 mAh | |
| Battery Life | - | 12 hour(s) | |
| Battery Life Details | - | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
|
| Standby Time | - | 312 hours | |
| Charging Time | - | 1.5 hour(s) |
| CONNECTIONS | Sharkoon Rush ER2 | Poly Voyager 4220 Office (UC Series) |
|---|
| Connector Type | Headset (mini-phone stereo 3.5 mm) | - |
|---|
| OTHERS | Sharkoon Rush ER2 | Poly Voyager 4220 Office (UC Series) |
|---|
| Included Accessories | Carrying pouch | Wireless headset system base, Bluetooth USB-C adapter |
|---|
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