In depth comparison and review of Sennheiser HD 4.40 and Panasonic RP-HF400B. 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 | Panasonic RP-HF400B |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 130 g | |
| Colour | - | Black | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser HD 4.40 | Panasonic RP-HF400B |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| Foldable | - | Yes | Panasonic RP-HF400B can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.0 | Bluetooth 4.1 | Panasonic RP-HF400B 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 | - | |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 113 dB | - | |
| Impedance | 18 Ohm | 32 Ohm | |
| Diaphragm | - | 30 mm | |
| Magnet Material | - | Neodymium |
| MICROPHONE | Sennheiser HD 4.40 | Panasonic RP-HF400B |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Sennheiser HD 4.40 | Panasonic RP-HF400B |
|---|
| Controls | - | Volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | Sennheiser HD 4.40 | Panasonic RP-HF400B |
|---|
| Cable Type | - | USB charge cable - 0.1 m |
|---|
| BATTERY AND CHARGING | Sennheiser HD 4.40 | Panasonic RP-HF400B |
|---|
| Battery Type | Headphone battery lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 20 hour(s) | |
| Charging Time | - | 3 hour(s) |
| WIRELESS LINK | Sennheiser HD 4.40 | Panasonic RP-HF400B |
|---|
| Transmission Range | - | 10 m |
|---|
| CONNECTIONS | Sennheiser HD 4.40 | Panasonic RP-HF400B |
|---|
| Connector Type | - | Bluetooth |
|---|
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