Side by side comparison and review of Sharkoon Rush ER2 and Poly Voyager 4220 (Office Series). 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 | Sharkoon Rush ER2 | Poly Voyager 4220 (Office Series) |
|---|
| Product Type | Headset - wired | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Series | - | Office Series | |
| Weight | 266 g | 150 g | Poly Voyager 4220 (Office Series) are lighter than Sharkoon Rush ER2 headphones. |
| Colour | White | Red | Green | Blue | - | |
| Recommended Use | Game console, portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | - | 91 m |
| SOUND QUALITY | Sharkoon Rush ER2 | Poly Voyager 4220 (Office Series) |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| 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) | |
| Bluetooth Audio Codec | - | SBC | |
| 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 | - | |
| Impedance | 32 Ohm | 32 Ohm | |
| Diaphragm | 40 mm | 32 mm | Sharkoon Rush ER2 have a thicker diaphragm than Poly Voyager 4220 (Office Series). |
| Features | - | SoundGuard DIGITAL Technology |
| MICROPHONE | Sharkoon Rush ER2 | Poly Voyager 4220 (Office 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 Series) |
|---|
| Controls | Volume control, microphone on/mute | Mute, volume, answer/end, next/previous track, redial |
|---|
| CABLE | Sharkoon Rush ER2 | Poly Voyager 4220 (Office Series) |
|---|
| Cable Type | Headset cable - 1.1 m Headset cable - 2.5 m |
- |
|---|
| FEATURES | Sharkoon Rush ER2 | Poly Voyager 4220 (Office Series) |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | Sharkoon Rush ER2 | Poly Voyager 4220 (Office Series) |
|---|
| Battery Type | - | Headset battery rechargeable - Lithium Ion | |
|---|---|---|---|
| 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 Series) |
|---|
| Connector Type | Headset (mini-phone stereo 3.5 mm) | USB (24 pin USB-C) |
|---|
| OTHERS | Sharkoon Rush ER2 | Poly Voyager 4220 (Office Series) |
|---|
| Included Accessories | Carrying pouch | - | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams |
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