In depth comparison and review of Poly Voyager Focus UC B825S-M and Sennheiser HMDC 27. 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 Focus UC B825S-M | Sennheiser HMDC 27 |
|---|
| Product Type | Headset - Bluetooth - wireless | Headset - wired | |
|---|---|---|---|
| Weight | 155 g | 240 g | Poly Voyager Focus UC B825S-M are lighter than Poly Voyager Focus UC B825S-M headphones. |
| Recommended Use | Portable electronics, computer | Professional audio | |
| Bluetooth Range (Operating Distance) | 45 m | - |
| SOUND QUALITY | Poly Voyager Focus UC B825S-M | Sennheiser HMDC 27 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.1 | - | |
| Bluetooth Profiles | Advanced Audio Distribution Profile (A2DP) | - | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 8 - 18000 Hz | |
| Total Harmonic Distortion (THD) | - | <0.1% | |
| Max Sound Pressure | - | 128 dB |
| MICROPHONE | Poly Voyager Focus UC B825S-M | Sennheiser HMDC 27 |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Technology | - | Dynamic | |
| Microphone Operation Mode | Mono | Hypercardioid | |
| Frequency Response | - | 40 - 18000 Hz |
| REMOTE CONTROL | Poly Voyager Focus UC B825S-M | Sennheiser HMDC 27 |
|---|
| Controls | Volume | - |
|---|
| CABLE | Poly Voyager Focus UC B825S-M | Sennheiser HMDC 27 |
|---|
| Cable Type | Charging cable | - |
|---|
| FEATURES | Poly Voyager Focus UC B825S-M | Sennheiser HMDC 27 |
|---|
| Features | - | EPOS ActiveGard | |
|---|---|---|---|
| Additional Functions | DSP | - |
| BATTERY AND CHARGING | Poly Voyager Focus UC B825S-M | Sennheiser HMDC 27 |
|---|
| Battery Type | Headset battery rechargeable | - | |
|---|---|---|---|
| Battery Life | 15 hour(s) | - |
| CONNECTIONS | Poly Voyager Focus UC B825S-M | Sennheiser HMDC 27 |
|---|
| Connector Type | Bluetooth | - |
|---|
| OTHERS | Poly Voyager Focus UC B825S-M | Sennheiser HMDC 27 |
|---|
| Included Accessories | Carrying case, Bluetooth USB adapter, charging stand | Wind screen, cable clip, headband padding | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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