In depth comparison and review of Cooler Master CH321 and Poly Voyager Focus B825. 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 | Cooler Master CH321 | Poly Voyager Focus B825 |
|---|
| Product Type | Headset - wired - USB | Headset - Bluetooth - wireless - USB-A via Bluetooth adapter | |
|---|---|---|---|
| Height | 22 cm | 7 cm | |
| Width | 20 cm | 18.3 cm | |
| Depth | 10.5 cm | 16 cm | |
| Weight | 348 g | 155 g | Poly Voyager Focus B825 are lighter than Cooler Master CH321 headphones. |
| Colour | - | Black | |
| Body Material | Plastic, steel | - | |
| Earpad Material | Foam, polyurethane leather | - | |
| Recommended Use | Game console, computer | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Cooler Master CH321 | Poly Voyager Focus B825 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Active Noise Cancelling | - | Yes | Poly Voyager Focus B825 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard DIGITAL | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | 180 mW | - | |
| Sensitivity | 115 dB | - | |
| Impedance | 16 Ohm | - | |
| Diaphragm | 50 mm | 32 mm | Cooler Master CH321 have a thicker diaphragm than Poly Voyager Focus B825. |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 8 | Poly Voyager Focus B825 have the ability to connect to multiple devices simultaneously. |
| Magnet Material | Neodymium | - | |
| Features | - | Smart Sensor Technology |
| MICROPHONE | Cooler Master CH321 | Poly Voyager Focus B825 |
|---|
| Form Factor | Headset microphone | - | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | Omni-directional | MEMS-directional | |
| Frequency Response | 100 - 16000 Hz | 100 - 6700 Hz | Cooler Master CH321 offer a larger microphone frequency range than Poly Voyager Focus B825. |
| Audio Input Details | Omni-directional - 100 - 16000 Hz | - | |
| Sensitivity | -38 dB | - | |
| Signal-To-Noise Ratio | 50 dB | - | |
| Microphones Included | - | 3 |
| REMOTE CONTROL | Cooler Master CH321 | Poly Voyager Focus B825 |
|---|
| Controls | - | Volume, answer/end, microphone on/mute, play/pause |
|---|
| CABLE | Cooler Master CH321 | Poly Voyager Focus B825 |
|---|
| Cable Type | - | Micro-USB charging cable | |
|---|---|---|---|
| Cable Length | 2.3 m | - |
| FEATURES | Cooler Master CH321 | Poly Voyager Focus B825 |
|---|
| Additional Functions | RGB lighting | - |
|---|
| BATTERY AND CHARGING | Cooler Master CH321 | Poly Voyager Focus B825 |
|---|
| 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) |
| CONNECTIONS | Cooler Master CH321 | Poly Voyager Focus B825 |
|---|
| Connector Type | Headset (4 PIN USB Type A) | - |
|---|
| OTHERS | Cooler Master CH321 | Poly Voyager Focus B825 |
|---|
| Included Accessories | - | Travel pouch, BT700 Bluetooth USB adapter | |
|---|---|---|---|
| Software Certification | - | Certified for Skype for Business | |
| TAA Compliant | - | Yes | |
| Service & Support | Limited warranty - 2 years | - |
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