In depth comparison and review of Poly Voyager Focus UC B825S-M and Sennheiser HD 400S. 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 HD 400S |
|---|
| Product Type | Headset - Bluetooth - wireless | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | 155 g | 217 g | Poly Voyager Focus UC B825S-M are lighter than Poly Voyager Focus UC B825S-M headphones. |
| Colour | - | Black | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | 45 m | - |
| SOUND QUALITY | Poly Voyager Focus UC B825S-M | Sennheiser HD 400S |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Sennheiser HD 400S can be folded. |
| Connectivity Technology | Wireless | Wired | |
| 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 400S are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 18 - 20000 Hz | |
| Total Harmonic Distortion (THD) | - | 0.5% | |
| Impedance | - | 18 Ohm | |
| Max Sound Pressure | - | 120 dB |
| MICROPHONE | Poly Voyager Focus UC B825S-M | Sennheiser HD 400S |
|---|
| Type | Boom | On-cable | |
|---|---|---|---|
| Microphone Operation Mode | Mono | - | |
| Frequency Response | - | 100 - 10000 Hz |
| REMOTE CONTROL | Poly Voyager Focus UC B825S-M | Sennheiser HD 400S |
|---|
| Controls | Volume | Answer/end, play/pause, next/previous track |
|---|
| CABLE | Poly Voyager Focus UC B825S-M | Sennheiser HD 400S |
|---|
| Cable Type | Charging cable | Headphones cable - detachable - L shaped / mini-phone stereo 3.5 mm - 1.4 m | |
|---|---|---|---|
| Cable Length | - | 1.4 m | |
| Detachable Cable | - | Yes |
| FEATURES | Poly Voyager Focus UC B825S-M | Sennheiser HD 400S |
|---|
| Additional Functions | DSP | - |
|---|
| BATTERY AND CHARGING | Poly Voyager Focus UC B825S-M | Sennheiser HD 400S |
|---|
| Battery Type | Headset battery rechargeable | - | |
|---|---|---|---|
| Battery Life | 15 hour(s) | - |
| CONNECTIONS | Poly Voyager Focus UC B825S-M | Sennheiser HD 400S |
|---|
| Connector Type | Bluetooth | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Voyager Focus UC B825S-M | Sennheiser HD 400S |
|---|
| Included Accessories | Carrying case, Bluetooth USB adapter, charging stand | - | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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