In depth comparison and review of Sharkoon Rush ER2 and Poly Voyager Focus B825. 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 Focus B825 |
|---|
| Product Type | Headset - wired | Headset - Bluetooth - wireless - USB-A via Bluetooth adapter | |
|---|---|---|---|
| Height | - | 7 cm | |
| Width | - | 18.3 cm | |
| Depth | - | 16 cm | |
| Weight | 266 g | 155 g | Poly Voyager Focus B825 are lighter than Sharkoon Rush ER2 headphones. |
| Colour | White | Red | Green | Blue | Black | |
| Recommended Use | Game console, portable electronics, computer | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Sharkoon Rush ER2 | Poly Voyager Focus B825 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Active Noise Cancelling | - | Yes | Poly Voyager Focus B825 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard DIGITAL | |
| 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 | - | |
| Diaphragm | 40 mm | 32 mm | Sharkoon Rush ER2 have a thicker diaphragm than Poly Voyager Focus B825. |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 8 | Poly Voyager Focus B825 have the ability to connect to multiple devices simultaneously. |
| Features | - | Smart Sensor Technology |
| MICROPHONE | Sharkoon Rush ER2 | Poly Voyager Focus B825 |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | MEMS-directional | |
| Frequency Response | 30 - 16000 Hz | 100 - 6700 Hz | Sharkoon Rush ER2 offer a larger microphone frequency range than Poly Voyager Focus B825. |
| Audio Input Details | Omni-directional - 30 - 16000 Hz - Output Impedance 2.2 kOhm | - | |
| Sensitivity | -58 dB | - | |
| Impedance | 2.2 kOhm | - | |
| Microphones Included | - | 3 |
| REMOTE CONTROL | Sharkoon Rush ER2 | Poly Voyager Focus B825 |
|---|
| Controls | Volume control, microphone on/mute | Volume, answer/end, microphone on/mute, play/pause |
|---|
| CABLE | Sharkoon Rush ER2 | Poly Voyager Focus B825 |
|---|
| Cable Type | Headset cable - 1.1 m Headset cable - 2.5 m |
Micro-USB charging cable |
|---|
| BATTERY AND CHARGING | Sharkoon Rush ER2 | Poly Voyager Focus B825 |
|---|
| Battery Type | - | Headset battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 325 mAh | |
| Battery Life | - | 15 hour(s) | |
| Battery Life Details | - | Continuous playback (AAC, active noise-cancelling on): up to 12 hours Continuous talk (active noise-cancelling off): up to 12 hours Continuous talk (active noise-cancelling on): up to 10 hours Continuous playback (active noise-cancelling off): up to 15 hours |
|
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Sharkoon Rush ER2 | Poly Voyager Focus B825 |
|---|
| Connector Type | Headset (mini-phone stereo 3.5 mm) | - |
|---|
| OTHERS | Sharkoon Rush ER2 | Poly Voyager Focus B825 |
|---|
| Included Accessories | Carrying pouch | Travel pouch, BT700 Bluetooth USB adapter | |
|---|---|---|---|
| Software Certification | - | Certified for Skype for Business | |
| TAA Compliant | - | Yes |
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