Side by side comparison and review of Sennheiser HD 4.50 BTNC Wireless 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 | Sennheiser HD 4.50 BTNC Wireless | Sennheiser HD 400S |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | 238 g | 217 g | Sennheiser HD 400S are lighter than Sennheiser HD 4.50 BTNC Wireless headphones. |
| Colour | - | Black | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Sennheiser HD 4.50 BTNC Wireless | Sennheiser HD 400S |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.0 | - | |
| 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 | - | |
| Noise Isolating | - | Yes | Sennheiser HD 400S are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | 18 - 20000 Hz | Sennheiser HD 4.50 BTNC Wireless offer a larger frequency range than Sennheiser HD 400S. |
| Total Harmonic Distortion (THD) | <0.5% | 0.5% | Both headphones have the same total harmonic distortion. |
| Sensitivity | 113 dB | - | |
| Impedance | 18 Ohm | 18 Ohm | |
| Max Sound Pressure | - | 120 dB | |
| Magnet Material | Neodymium | - | |
| Features | Bluetooth aptX technology | - |
| MICROPHONE | Sennheiser HD 4.50 BTNC Wireless | Sennheiser HD 400S |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | On-cable | |
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | 100 - 10000 Hz | 100 - 10000 Hz | The frequency response of the microphones in both headphones is the same. |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Sennheiser HD 4.50 BTNC Wireless | Sennheiser HD 400S |
|---|
| Controls | Power on/off, volume control, answer/end, hold, play/pause, next/previous track, reject call, redial | Answer/end, play/pause, next/previous track |
|---|
| CABLE | Sennheiser HD 4.50 BTNC Wireless | Sennheiser HD 400S |
|---|
| Cable Type | Headphones cable - detachable - L shaped - 1.4 m Micro-USB charge cable - detachable |
Headphones cable - detachable - L shaped / mini-phone stereo 3.5 mm - 1.4 m | |
|---|---|---|---|
| Cable Length | 1.4 m | 1.4 m | |
| Detachable Cable | Yes | Yes | |
| Plated Connector | Gold | - |
| BATTERY AND CHARGING | Sennheiser HD 4.50 BTNC Wireless | Sennheiser HD 400S |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 600 mAh | - | |
| Battery Life | 25 hour(s) | - | |
| Charging Time | 2 hour(s) | - |
| CONNECTIONS | Sennheiser HD 4.50 BTNC Wireless | Sennheiser HD 400S |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Sennheiser HD 4.50 BTNC Wireless | Sennheiser HD 400S |
|---|
| Included Accessories | Carrying case, micro-USB charging cable | - | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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