Side by side comparison and review of ASTRO A20 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 | ASTRO A20 | Poly Voyager 4220 (Office Series) |
|---|
| Product Type | Headset - wireless | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Series | - | Office Series | |
| Weight | 320 g | 150 g | Poly Voyager 4220 (Office Series) are lighter than ASTRO A20 headphones. |
| Colour | Black, green | Navy, Call of Duty | Silver, Call of Duty | Black, blue | - | |
| Headband Material | Steel | - | |
| Recommended Use | Game console, computer | - | |
| Bluetooth Range (Operating Distance) | 9.14 m | 91 m | Poly Voyager 4220 (Office Series) have a greater operating distance than ASTRO A20. |
| SOUND QUALITY | ASTRO A20 | Poly Voyager 4220 (Office Series) |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | 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. |
| Total Harmonic Distortion (THD) | <3% | - | |
| Sensitivity | 100 dB | - | |
| Impedance | 32 Ohm | 32 Ohm | |
| Diaphragm | 40 mm | 32 mm | ASTRO A20 have a thicker diaphragm than Poly Voyager 4220 (Office Series). |
| Magnet Material | Neodymium | - | |
| Features | - | SoundGuard DIGITAL Technology | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | ASTRO A20 | Poly Voyager 4220 (Office Series) |
|---|
| Form Factor | Headset microphone | - | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | - | Uni-directional | |
| Audio Input Details | Uni-directional | - | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | ASTRO A20 | Poly Voyager 4220 (Office Series) |
|---|
| Controls | Volume, power on/off | Mute, volume, answer/end, next/previous track, redial |
|---|
| CABLE | ASTRO A20 | Poly Voyager 4220 (Office Series) |
|---|
| Cable Type | Micro-USB cable - detachable - 1 m Audio (optical) cable - detachable - 1 m Micro-USB cable - detachable - 50 cm |
- | |
|---|---|---|---|
| Cable Length | 1 m | - | |
| Detachable Cable | Yes | - |
| FEATURES | ASTRO A20 | Poly Voyager 4220 (Office Series) |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | ASTRO A20 | Poly Voyager 4220 (Office Series) |
|---|
| Battery Type | Headset battery rechargeable | Headset battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 360 mAh | |
| Battery Life | 15 hour(s) | 12 hour(s) | ASTRO A20 lasts longer on a single charge than the Poly Voyager 4220 (Office Series). |
| 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 | ASTRO A20 | Poly Voyager 4220 (Office Series) |
|---|
| Connector Type | - | USB (24 pin USB-C) |
|---|
| OTHERS | ASTRO A20 | Poly Voyager 4220 (Office Series) |
|---|
| Included Accessories | Wireless transmitter | - | |
|---|---|---|---|
| Compatibility | Mac, Windows | - | |
| Software Certification | - | Certified for Microsoft Teams |
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