In depth comparison and review of Sennheiser HD 300 PROtect 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 300 PROtect | Poly Voyager Focus UC B825S-M |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 297 g | 155 g | Poly Voyager Focus UC B825S-M are lighter than Sennheiser HD 300 PROtect headphones. |
| Recommended Use | - | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 45 m |
| SOUND QUALITY | Sennheiser HD 300 PROtect | 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 | Yes | Both headphones are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 6 - 25000 Hz | - | |
| Max Input Power | 500 mW | - | |
| Total Harmonic Distortion (THD) | <0.1% | - | |
| Sensitivity | 108 dB | - | |
| Impedance | 64 Ohm | - |
| MICROPHONE | Sennheiser HD 300 PROtect | Poly Voyager Focus UC B825S-M |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Mono |
| REMOTE CONTROL | Sennheiser HD 300 PROtect | Poly Voyager Focus UC B825S-M |
|---|
| Controls | - | Volume |
|---|
| CABLE | Sennheiser HD 300 PROtect | Poly Voyager Focus UC B825S-M |
|---|
| Cable Type | Headphones cable - 1.55 m | Charging cable | |
|---|---|---|---|
| Cable Length | 1.55 m | - |
| FEATURES | Sennheiser HD 300 PROtect | Poly Voyager Focus UC B825S-M |
|---|
| Features | EPOS ActiveGard | - | |
|---|---|---|---|
| Additional Functions | - | DSP |
| BATTERY AND CHARGING | Sennheiser HD 300 PROtect | Poly Voyager Focus UC B825S-M |
|---|
| Battery Type | - | Headset battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 15 hour(s) |
| CONNECTIONS | Sennheiser HD 300 PROtect | Poly Voyager Focus UC B825S-M |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Bluetooth |
|---|
| OTHERS | Sennheiser HD 300 PROtect | Poly Voyager Focus UC B825S-M |
|---|
| Included Accessories | 6.3 mm (1/4") stereo adapter | Carrying case, Bluetooth USB adapter, charging stand | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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