Side by side comparison and review of August EP650B and Cooler Master CH321. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | August EP650B | Cooler Master CH321 |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headset - wired - USB | |
|---|---|---|---|
| Height | 17.66 cm | 22 cm | |
| Width | 18.86 cm | 20 cm | |
| Depth | 7.1 cm | 10.5 cm | |
| Weight | 235 g | 348 g | August EP650B are lighter than August EP650B headphones. |
| Body Material | - | Plastic, steel | |
| Earpad Material | - | Foam, polyurethane leather | |
| Recommended Use | Portable electronics, computer | Game console, computer | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | August EP650B | Cooler Master CH321 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Foldable | Yes | - | August EP650B can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.1 | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 60 - 20000 Hz | 20 - 20000 Hz | Cooler Master CH321 offer a larger frequency range than August EP650B. |
| Max Input Power | - | 180 mW | |
| Total Harmonic Distortion (THD) | 1% | - | |
| Sensitivity | - | 115 dB | |
| Impedance | - | 16 Ohm | |
| Diaphragm | 50 mm | 50 mm | Both headphones are designed with same thick diaphragm. |
| Signal-To-Noise Ratio | 85 dB | - | |
| Magnet Material | - | Neodymium | |
| Features | Bluetooth aptX technology | - |
| MICROPHONE | August EP650B | Cooler Master CH321 |
|---|
| Form Factor | Built-in | Headset microphone | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 16000 Hz | |
| Audio Input Details | - | Omni-directional - 100 - 16000 Hz | |
| Sensitivity | - | -38 dB | |
| Signal-To-Noise Ratio | - | 50 dB |
| CABLE | August EP650B | Cooler Master CH321 |
|---|
| Cable Type | Headphones cable - detachable | - | |
|---|---|---|---|
| Cable Length | - | 2.3 m |
| FEATURES | August EP650B | Cooler Master CH321 |
|---|
| Additional Functions | - | RGB lighting |
|---|
| BATTERY AND CHARGING | August EP650B | Cooler Master CH321 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | - | |
|---|---|---|---|
| Battery Capacity | 220 mAh | - | |
| Battery Life | 10 hour(s) | - | |
| Standby Time | 720 hours | - | |
| Charging Time | 2 hour(s) | - |
| CONNECTIONS | August EP650B | Cooler Master CH321 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) USB |
Headset (4 PIN USB Type A) |
|---|
| OTHERS | August EP650B | Cooler Master CH321 |
|---|
| Compatibility | iPhone, iPad, iPod, Android phone | - | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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