In depth comparison and review of Poly Voyager 4220 Office (UC Series) and Alpha Bravo GX2. 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 | Poly Voyager 4220 Office (UC Series) | Alpha Bravo GX2 |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headset - wired - USB | |
|---|---|---|---|
| Series | UC Series | - | |
| Weight | 150 g | - | |
| Recommended Use | - | Game console, portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 30 m | - |
| SOUND QUALITY | Poly Voyager 4220 Office (UC Series) | Alpha Bravo GX2 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wired | |
| 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 | |
| Sound Effects | - | 7.1 Channel Virtual Surround Sound | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 94 dB | 115 dB | Alpha Bravo GX2 have higher sensitivity than Poly Voyager 4220 Office (UC Series). |
| Impedance | 32 Ohm | 20 Ohm | |
| Diaphragm | 32 mm | 50 mm | Alpha Bravo GX2 have a thicker diaphragm than Poly Voyager 4220 Office (UC Series). |
| Features | SoundGuard Technology | - |
| MICROPHONE | Poly Voyager 4220 Office (UC Series) | Alpha Bravo GX2 |
|---|
| Form Factor | - | Headset microphone | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | Uni-directional | Omni-directional | |
| Noise Cancelling | - | Yes | Alpha Bravo GX2 microphone can cancel out ambient noise. |
| Frequency Response | - | 50 - 10000 Hz | |
| Sensitivity | - | -36 dB | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Poly Voyager 4220 Office (UC Series) | Alpha Bravo GX2 |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Poly Voyager 4220 Office (UC Series) | Alpha Bravo GX2 |
|---|
| Cable Type | - | USB cable - 2 m | |
|---|---|---|---|
| Cable Length | - | 2 m |
| FEATURES | Poly Voyager 4220 Office (UC Series) | Alpha Bravo GX2 |
|---|
| Features | Voice alerts | - | |
|---|---|---|---|
| Additional Functions | - | LED backlight (blue) |
| BATTERY AND CHARGING | Poly Voyager 4220 Office (UC Series) | Alpha Bravo GX2 |
|---|
| 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 | Poly Voyager 4220 Office (UC Series) | Alpha Bravo GX2 |
|---|
| Connector Type | - | USB (4 PIN USB Type A) |
|---|
| OTHERS | Poly Voyager 4220 Office (UC Series) | Alpha Bravo GX2 |
|---|
| Included Accessories | Wireless headset system base, Bluetooth USB-C adapter | - |
|---|
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