Detailed comparison and review of Sennheiser HD 400S and Poly Voyager Surround 85. 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 Surround 85 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - Bluetooth - wireless - USB-C via Bluetooth adapter | |
|---|---|---|---|
| Series | - | Voyager Surround 80 series | |
| Height | - | 18.1 cm | |
| Width | - | 19.1 cm | |
| Depth | - | 7.7 cm | |
| Weight | 217 g | 275 g | Sennheiser HD 400S are lighter than Sennheiser HD 400S headphones. |
| Colour | Black | Black | |
| Earpad Material | - | Artificial leather | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Sennheiser HD 400S | Poly Voyager Surround 85 |
|---|
| Headphones Form Factor | Full size | Over 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 5.3 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Audio/Video Distribution Transport Protocol (AVDTP) | |
| Active Noise Cancelling | - | Yes | Poly Voyager Surround 85 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Adjustable noise cancellation | |
| Noise Isolating | Yes | - | Sennheiser HD 400S are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 18 - 20000 Hz | - | |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | - | 132 dB | |
| Impedance | 18 Ohm | - | |
| Max Sound Pressure | 120 dB | - | |
| Diaphragm | - | 40 mm | |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 2 | Poly Voyager Surround 85 have the ability to connect to multiple devices simultaneously. |
| Features | - | SoundGuard DIGITAL Technology, Smart Sensor Technology |
| MICROPHONE | Sennheiser HD 400S | Poly Voyager Surround 85 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Frequency Response | 100 - 10000 Hz | 20 - 16000 Hz | Poly Voyager Surround 85 offer a larger microphone frequency range than Sennheiser HD 400S. |
| Sensitivity | - | -37 dB | |
| Microphones Included | - | 10 |
| REMOTE CONTROL | Sennheiser HD 400S | Poly Voyager Surround 85 |
|---|
| Controls | Answer/end, play/pause, next/previous track | Volume, power on/off, answer/end, play/pause |
|---|
| CABLE | Sennheiser HD 400S | Poly Voyager Surround 85 |
|---|
| Cable Type | Headphones cable - detachable - L shaped / mini-phone stereo 3.5 mm - 1.4 m | USB-C to mini-phone 3.5 mm cable USB-C charge cable - detachable |
|
|---|---|---|---|
| Cable Length | 1.4 m | - | |
| Detachable Cable | Yes | - |
| BATTERY AND CHARGING | Sennheiser HD 400S | Poly Voyager Surround 85 |
|---|
| Battery Type | - | Headset battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | - | 24 hours | |
| Battery Life Details | - | Continuous playback: up to 24 hours Continuous talk: up to 21 hours |
|
| Charging Time | - | 1 hours |
| CONNECTIONS | Sennheiser HD 400S | Poly Voyager Surround 85 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | - |
|---|
| OTHERS | Sennheiser HD 400S | Poly Voyager Surround 85 |
|---|
| Included Accessories | - | Carrying case, USB charging cable, charging stand, USB-C to USB-A adapter, USB-C to audio cable, BT700 Bluetooth USB-C adapter | |
|---|---|---|---|
| Software Included | - | Poly Lens | |
| Compatibility | - | Mac, Windows | |
| Software Certification | - | Certified for Microsoft Teams, Certified for Microsoft Teams Open Office, UC certified | |
| Supported Host Device OS | - | macOS, Android, iOS, Windows | |
| Service & Support | Limited warranty - 2 years | - |
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