Side by side comparison and review of Sennheiser HD 450BT and Poly Voyager Surround 85. 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 | Sennheiser HD 450BT | Poly Voyager Surround 85 |
|---|
| Product Type | Headphones - Bluetooth - wireless | 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 | 238 g | 275 g | Sennheiser HD 450BT are lighter than Sennheiser HD 450BT headphones. |
| Colour | Black | White | Black | |
| Earpad Material | - | Artificial leather | |
| Recommended Use | - | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Sennheiser HD 450BT | Poly Voyager Surround 85 |
|---|
| Headphones Form Factor | Full size | Over ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | Sennheiser HD 450BT can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.3 | Poly Voyager Surround 85 have a more advanced version of Bluetooth than Sennheiser HD 450BT. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Audio/Video Distribution Transport Protocol (AVDTP) | |
| Bluetooth Audio Codec | SBC, AAC, aptX, apt-X LL | - | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Adjustable noise cancellation | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 18 - 22000 Hz | - | |
| Total Harmonic Distortion (THD) | <0.3% | - | |
| Sensitivity | - | 132 dB | |
| Max Sound Pressure | 108 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 450BT | Poly Voyager Surround 85 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Beamforming | - | |
| Frequency Response | 80 - 6000 Hz | 20 - 16000 Hz | Poly Voyager Surround 85 offer a larger microphone frequency range than Sennheiser HD 450BT. |
| Sensitivity | - | -37 dB | |
| Microphones Included | 2 | 10 | Poly Voyager Surround 85 have a built-in microphone. |
| REMOTE CONTROL | Sennheiser HD 450BT | Poly Voyager Surround 85 |
|---|
| Controls | - | Volume, power on/off, answer/end, play/pause |
|---|
| CABLE | Sennheiser HD 450BT | Poly Voyager Surround 85 |
|---|
| Cable Type | Audio cable - detachable USB-C charge cable - detachable |
USB-C to mini-phone 3.5 mm cable USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | Sennheiser HD 450BT | Poly Voyager Surround 85 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headset battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 600 mAh | - | |
| Battery Life | 30 hours | 24 hours | Sennheiser HD 450BT lasts longer on a single charge than the Poly Voyager Surround 85. |
| Battery Life Details | - | Continuous playback: up to 24 hours Continuous talk: up to 21 hours |
|
| Charging Time | 2 hours | 1 hours | Poly Voyager Surround 85 recharge faster than Sennheiser HD 450BT. |
| OTHERS | Sennheiser HD 450BT | Poly Voyager Surround 85 |
|---|
| Included Accessories | Carrying case | 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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