In depth comparison and review of Sennheiser HD 820 and Poly Voyager Focus UC B825S-M. 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 | Sennheiser HD 820 | Poly Voyager Focus UC B825S-M |
|---|
| Product Type | Headphones - wired | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 360 g | 155 g | Poly Voyager Focus UC B825S-M are lighter than Sennheiser HD 820 headphones. |
| Earpad Material | Microfibre | - | |
| Recommended Use | - | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 45 m |
| SOUND QUALITY | Sennheiser HD 820 | Poly Voyager Focus UC B825S-M |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Bluetooth Profiles | - | Advanced Audio Distribution Profile (A2DP) | |
| Active Noise Cancelling | - | Yes | Poly Voyager Focus UC B825S-M are equipped with active noice cancellation. |
| Noise Isolating | Yes | - | Sennheiser HD 820 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 6 - 48000 Hz | - | |
| Sensitivity | 103 dB/Vrms | - | |
| Impedance | 300 Ohm | - |
| MICROPHONE | Sennheiser HD 820 | Poly Voyager Focus UC B825S-M |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Mono |
| REMOTE CONTROL | Sennheiser HD 820 | Poly Voyager Focus UC B825S-M |
|---|
| Controls | - | Volume |
|---|
| CABLE | Sennheiser HD 820 | Poly Voyager Focus UC B825S-M |
|---|
| Cable Type | Headphones cable - OFC - 3 m | Charging cable | |
|---|---|---|---|
| Cable Length | 3 m | - | |
| Plated Connector | Gold | - |
| FEATURES | Sennheiser HD 820 | Poly Voyager Focus UC B825S-M |
|---|
| Additional Functions | - | DSP |
|---|
| BATTERY AND CHARGING | Sennheiser HD 820 | Poly Voyager Focus UC B825S-M |
|---|
| Battery Type | - | Headset battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 15 hour(s) |
| CONNECTIONS | Sennheiser HD 820 | Poly Voyager Focus UC B825S-M |
|---|
| Connector Type | Headphones (phone stereo 6.3 mm) | Bluetooth |
|---|
| OTHERS | Sennheiser HD 820 | Poly Voyager Focus UC B825S-M |
|---|
| Included Accessories | USB flash drive, microfibre cleaning cloth, 4.4 mm Pentaconn stereo jack plug, XLR-4 connector | Carrying case, Bluetooth USB adapter, charging stand | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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