Detailed comparison and review of Sennheiser HD 400S and Poly Voyager 4220 UC. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Sennheiser HD 400S | Poly Voyager 4220 UC |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Series | - | UC Series | |
| Weight | 217 g | 150 g | Poly Voyager 4220 UC are lighter than Sennheiser HD 400S headphones. |
| Colour | Black | - | |
| Recommended Use | Portable electronics | - | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Sennheiser HD 400S | Poly Voyager 4220 UC |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | Sennheiser HD 400S can be folded. |
| 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, mSBC | |
| Noise Isolating | Yes | - | Sennheiser HD 400S are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 20000 Hz | 20 - 20000 Hz | Sennheiser HD 400S offer a larger frequency range than Poly Voyager 4220 UC. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Impedance | 18 Ohm | 32 Ohm | |
| Max Sound Pressure | 120 dB | - | |
| Diaphragm | - | 32 mm | |
| Features | - | SoundGuard DIGITAL Technology |
| MICROPHONE | Sennheiser HD 400S | Poly Voyager 4220 UC |
|---|
| Form Factor | - | Headset microphone | |
|---|---|---|---|
| Type | On-cable | Boom | |
| Microphone Operation Mode | - | Uni-directional | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Sennheiser HD 400S | Poly Voyager 4220 UC |
|---|
| Controls | Answer/end, play/pause, next/previous track | Mute, volume, answer/end, play/pause, next/previous track, reject call, redial, voice assistant |
|---|
| CABLE | Sennheiser HD 400S | Poly Voyager 4220 UC |
|---|
| Cable Type | Headphones cable - detachable - L shaped / mini-phone stereo 3.5 mm - 1.4 m | - | |
|---|---|---|---|
| Cable Length | 1.4 m | - | |
| Detachable Cable | Yes | - |
| FEATURES | Sennheiser HD 400S | Poly Voyager 4220 UC |
|---|
| Features | - | Voice alerts | |
|---|---|---|---|
| Intelligent Assistant | - | Alexa |
| BATTERY AND CHARGING | Sennheiser HD 400S | Poly Voyager 4220 UC |
|---|
| Battery Type | - | Headset battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 360 mAh | |
| Battery Life | - | 15 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 | Sennheiser HD 400S | Poly Voyager 4220 UC |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Wireless adapter (4 PIN USB Type A) |
|---|
| OTHERS | Sennheiser HD 400S | Poly Voyager 4220 UC |
|---|
| Included Accessories | - | Bluetooth USB adapter, charging stand | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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