In depth comparison and review of Sennheiser HMDC 27 and Poly Voyager Focus B825-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 HMDC 27 | Poly Voyager Focus B825-M |
|---|
| Product Type | Headset - wired | Headset - Bluetooth - wireless - USB-A via Bluetooth adapter | |
|---|---|---|---|
| Height | - | 7 cm | |
| Width | - | 18.3 cm | |
| Depth | - | 16 cm | |
| Weight | 240 g | 155 g | Poly Voyager Focus B825-M are lighter than Sennheiser HMDC 27 headphones. |
| Colour | - | Black | |
| Recommended Use | Professional audio | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Sennheiser HMDC 27 | Poly Voyager Focus B825-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 | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 8 - 18000 Hz | 20 - 20000 Hz | Poly Voyager Focus B825-M offer a larger frequency range than Sennheiser HMDC 27. |
| Total Harmonic Distortion (THD) | <0.1% | - | |
| Max Sound Pressure | 128 dB | - | |
| Diaphragm | - | 32 mm | |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 8 | Poly Voyager Focus B825-M have the ability to connect to multiple devices simultaneously. |
| Features | - | Smart Sensor Technology |
| MICROPHONE | Sennheiser HMDC 27 | Poly Voyager Focus B825-M |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Technology | Dynamic | - | |
| Microphone Operation Mode | Hypercardioid | MEMS-directional | |
| Frequency Response | 40 - 18000 Hz | 100 - 6700 Hz | Sennheiser HMDC 27 offer a larger microphone frequency range than Poly Voyager Focus B825-M. |
| Microphones Included | - | 3 |
| REMOTE CONTROL | Sennheiser HMDC 27 | Poly Voyager Focus B825-M |
|---|
| Controls | - | Volume, answer/end, microphone on/mute, play/pause |
|---|
| CABLE | Sennheiser HMDC 27 | Poly Voyager Focus B825-M |
|---|
| Cable Type | - | Micro-USB charging cable |
|---|
| FEATURES | Sennheiser HMDC 27 | Poly Voyager Focus B825-M |
|---|
| Features | EPOS ActiveGard | - |
|---|
| BATTERY AND CHARGING | Sennheiser HMDC 27 | Poly Voyager Focus B825-M |
|---|
| Battery Type | - | Headset battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 325 mAh | |
| Battery Life | - | 15 hour(s) | |
| Battery Life Details | - | Continuous playback (AAC, active noise-cancelling on): up to 12 hours Continuous talk (active noise-cancelling off): up to 12 hours Continuous talk (active noise-cancelling on): up to 10 hours Continuous playback (active noise-cancelling off): up to 15 hours |
|
| Charging Time | - | 2 hour(s) |
| OTHERS | Sennheiser HMDC 27 | Poly Voyager Focus B825-M |
|---|
| Included Accessories | Wind screen, cable clip, headband padding | Travel pouch, BT700 Bluetooth USB adapter | |
|---|---|---|---|
| Software Certification | - | Certified for Skype for Business, Certified for Microsoft Teams |
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