Side by side comparison and review of Sennheiser HD 4.50 BTNC Wireless and August EP650B. 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 | Sennheiser HD 4.50 BTNC Wireless | August EP650B |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless - NFC - USB, 3.5 mm jack | |
|---|---|---|---|
| Height | - | 17.66 cm | |
| Width | - | 18.86 cm | |
| Depth | - | 7.1 cm | |
| Weight | 238 g | 235 g | August EP650B are lighter than Sennheiser HD 4.50 BTNC Wireless headphones. |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser HD 4.50 BTNC Wireless | August EP650B |
|---|
| 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 EP650B 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) | - | |
| 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 EP650B. |
| 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 EP650B |
|---|
| 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 EP650B |
|---|
| 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 EP650B |
|---|
| 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 EP650B |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 600 mAh | 220 mAh | Sennheiser HD 4.50 BTNC Wireless have a higher battery capacity than August EP650B. |
| Battery Life | 25 hour(s) | 10 hour(s) | Sennheiser HD 4.50 BTNC Wireless lasts longer on a single charge than the August EP650B. |
| 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 EP650B |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Headphones (mini-phone stereo 3.5 mm) USB |
|---|
| OTHERS | Sennheiser HD 4.50 BTNC Wireless | August EP650B |
|---|
| Included Accessories | Carrying case, micro-USB charging cable | - | |
|---|---|---|---|
| Compatibility | - | iPhone, iPad, iPod, Android phone |
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