In depth comparison and review of Sennheiser HD 4.50 BTNC Wireless 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 4.50 BTNC Wireless | 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 | 238 g | 235 g | August EP650 are lighter than Sennheiser HD 4.50 BTNC Wireless headphones. |
| Colour | - | Gold | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser HD 4.50 BTNC Wireless | August EP650 |
|---|
| 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 | 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 4.50 BTNC Wireless. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | Yes | - | Sennheiser HD 4.50 BTNC Wireless are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | NoiseGard active noise compensation | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | 60 - 20000 Hz | Sennheiser HD 4.50 BTNC Wireless offer a larger frequency range than August EP650. |
| Total Harmonic Distortion (THD) | <0.5% | 1% | Sennheiser HD 4.50 BTNC Wireless have lower total harmonic distortion than Sennheiser HD 4.50 BTNC Wireless. |
| Sensitivity | 113 dB | - | |
| Impedance | 18 Ohm | - | |
| Diaphragm | - | 50 mm | |
| Signal-To-Noise Ratio | - | 85 dB | |
| Magnet Material | Neodymium | - | |
| Features | Bluetooth aptX technology | Bluetooth aptX technology |
| MICROPHONE | Sennheiser HD 4.50 BTNC Wireless | August EP650 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Sennheiser HD 4.50 BTNC Wireless | August EP650 |
|---|
| Controls | Power on/off, volume control, answer/end, hold, play/pause, next/previous track, reject call, redial | - |
|---|
| CABLE | Sennheiser HD 4.50 BTNC Wireless | August EP650 |
|---|
| Cable Type | Headphones cable - detachable - L shaped - 1.4 m Micro-USB charge cable - detachable |
Headphones cable - detachable | |
|---|---|---|---|
| Cable Length | 1.4 m | - | |
| Detachable Cable | Yes | - | |
| Plated Connector | Gold | - |
| BATTERY AND CHARGING | Sennheiser HD 4.50 BTNC Wireless | August EP650 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 600 mAh | 220 mAh | Sennheiser HD 4.50 BTNC Wireless have a higher battery capacity than August EP650. |
| Battery Life | 25 hour(s) | 10 hour(s) | Sennheiser HD 4.50 BTNC Wireless lasts longer on a single charge than the August EP650. |
| Standby Time | - | 720 hours | |
| Charging Time | 2 hour(s) | 2 hour(s) | The charging of both headphones last the same time. |
| CONNECTIONS | Sennheiser HD 4.50 BTNC Wireless | August EP650 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Sennheiser HD 4.50 BTNC Wireless | August EP650 |
|---|
| Included Accessories | Carrying case, micro-USB charging cable | USB charging cable | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 1 year |
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