Side by side comparison and review of August EP650B and Sennheiser HD 400S. 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 | Sennheiser HD 400S |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Height | 17.66 cm | - | |
| Width | 18.86 cm | - | |
| Depth | 7.1 cm | - | |
| Weight | 235 g | 217 g | Sennheiser HD 400S are lighter than August EP650B headphones. |
| Colour | - | Black | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | August EP650B | Sennheiser HD 400S |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.1 | - | |
| Noise Isolating | - | Yes | Sennheiser HD 400S are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 60 - 20000 Hz | 18 - 20000 Hz | Sennheiser HD 400S offer a larger frequency range than August EP650B. |
| Total Harmonic Distortion (THD) | 1% | 0.5% | Sennheiser HD 400S have lower total harmonic distortion than August EP650B. |
| Impedance | - | 18 Ohm | |
| Max Sound Pressure | - | 120 dB | |
| Diaphragm | 50 mm | - | |
| Signal-To-Noise Ratio | 85 dB | - | |
| Features | Bluetooth aptX technology | - |
| MICROPHONE | August EP650B | Sennheiser HD 400S |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | On-cable | |
| Frequency Response | - | 100 - 10000 Hz |
| REMOTE CONTROL | August EP650B | Sennheiser HD 400S |
|---|
| Controls | - | Answer/end, play/pause, next/previous track |
|---|
| CABLE | August EP650B | Sennheiser HD 400S |
|---|
| Cable Type | Headphones cable - detachable | Headphones cable - detachable - L shaped / mini-phone stereo 3.5 mm - 1.4 m | |
|---|---|---|---|
| Cable Length | - | 1.4 m | |
| Detachable Cable | - | Yes |
| BATTERY AND CHARGING | August EP650B | Sennheiser HD 400S |
|---|
| 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 | Sennheiser HD 400S |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) USB |
Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | August EP650B | Sennheiser HD 400S |
|---|
| Compatibility | iPhone, iPad, iPod, Android phone | - | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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