In depth comparison and review of Sennheiser HD 4.40 and August EP650. 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 4.40 | August EP650 |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless - NFC - 3.5 mm jack | |
|---|---|---|---|
| Height | - | 17.66 cm | |
| Width | - | 18.86 cm | |
| Depth | - | 7.1 cm | |
| Weight | - | 235 g | |
| Colour | - | Gold | |
| Recommended Use | - | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser HD 4.40 | August EP650 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| Foldable | - | Yes | August EP650 can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.0 | Bluetooth 4.1 | August EP650 have a more advanced version of Bluetooth than Sennheiser HD 4.40. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | 60 - 20000 Hz | Sennheiser HD 4.40 offer a larger frequency range than August EP650. |
| Total Harmonic Distortion (THD) | 0.5% | 1% | Sennheiser HD 4.40 have lower total harmonic distortion than Sennheiser HD 4.40. |
| Sensitivity | 113 dB | - | |
| Impedance | 18 Ohm | - | |
| Diaphragm | - | 50 mm | |
| Signal-To-Noise Ratio | - | 85 dB | |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | Sennheiser HD 4.40 | August EP650 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | 2 | - |
| CABLE | Sennheiser HD 4.40 | August EP650 |
|---|
| Cable Type | - | Headphones cable - detachable |
|---|
| BATTERY AND CHARGING | Sennheiser HD 4.40 | August EP650 |
|---|
| Battery Type | Headphone battery lithium polymer | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 220 mAh | |
| Battery Life | - | 10 hour(s) | |
| Standby Time | - | 720 hours | |
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Sennheiser HD 4.40 | August EP650 |
|---|
| Connector Type | - | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Sennheiser HD 4.40 | August EP650 |
|---|
| Included Accessories | - | USB charging cable | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 1 year |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
