In depth comparison and review of Poly Voyager 4220 Office (UC Series) and Razer Kaira. 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) | Razer Kaira |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headset - 2.4/5 GHz - wireless | |
|---|---|---|---|
| Series | UC Series | - | |
| Weight | 150 g | 293 g | Poly Voyager 4220 Office (UC Series) are lighter than Poly Voyager 4220 Office (UC Series) headphones. |
| Earpad Material | - | FlowKnit memory foam | |
| Recommended Use | - | Game console, computer | |
| Bluetooth Range (Operating Distance) | 30 m | 10 m | Poly Voyager 4220 Office (UC Series) have a greater operating distance than Razer Kaira. |
| SOUND QUALITY | Poly Voyager 4220 Office (UC Series) | Razer Kaira |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | 2.4/5 GHz radio frequency | |
| 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) | - | |
| Noise Isolating | - | Yes | Razer Kaira are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Windows Sonic surround sound | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 94 dB | 108 dB | Razer Kaira have higher sensitivity than Poly Voyager 4220 Office (UC Series). |
| Impedance | 32 Ohm | 32 Ohm | |
| Diaphragm | 32 mm | 50 mm | Razer Kaira have a thicker diaphragm than Poly Voyager 4220 Office (UC Series). |
| Magnet Material | - | Razer Triforce titanium | |
| Features | SoundGuard Technology | - |
| MICROPHONE | Poly Voyager 4220 Office (UC Series) | Razer Kaira |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | Uni-directional | Uni-directional (HyperClear flexible cardioid) | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -54 dB | |
| Signal-To-Noise Ratio | - | 60 dB | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Poly Voyager 4220 Office (UC Series) | Razer Kaira |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track | Volume, power on/off, microphone on/mute switch, status indicator, pair mode, game/chat balance |
|---|
| FEATURES | Poly Voyager 4220 Office (UC Series) | Razer Kaira |
|---|
| Features | Voice alerts | Xbox Wireless technology |
|---|
| BATTERY AND CHARGING | Poly Voyager 4220 Office (UC Series) | Razer Kaira |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 360 mAh | - | |
| Battery Life | 12 hour(s) | 15 hour(s) | Razer Kaira lasts longer on a single charge than the Poly Voyager 4220 Office (UC 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) | - |
| OTHERS | Poly Voyager 4220 Office (UC Series) | Razer Kaira |
|---|
| Included Accessories | Wireless headset system base, Bluetooth USB-C adapter | - | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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