In depth comparison and review of Panasonic RP-HF400B and Sennheiser HD 250BT. 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 | Panasonic RP-HF400B | Sennheiser HD 250BT |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 130 g | 125 g | Sennheiser HD 250BT are lighter than Panasonic RP-HF400B headphones. |
| Colour | Black | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Panasonic RP-HF400B | Sennheiser HD 250BT |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | - | Yes | |
| Foldable | Yes | - | Panasonic RP-HF400B can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 | Sennheiser HD 250BT have a more advanced version of Bluetooth than Panasonic RP-HF400B. |
| 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) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, apt-X LL | |
| Noise Isolating | - | Yes | Sennheiser HD 250BT are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 20 - 22000 Hz | |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Sensitivity | - | 110 dB | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 30 mm | 32 mm | Sennheiser HD 250BT have a thicker diaphragm than Panasonic RP-HF400B. |
| Magnet Material | Neodymium | - | |
| Features | - | Audio prompts |
| MICROPHONE | Panasonic RP-HF400B | Sennheiser HD 250BT |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz |
| REMOTE CONTROL | Panasonic RP-HF400B | Sennheiser HD 250BT |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track | Volume, on/off, answer/end, hold, play/pause, next/previous track, reject call |
|---|
| CABLE | Panasonic RP-HF400B | Sennheiser HD 250BT |
|---|
| Cable Type | USB charge cable - 0.1 m | USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | Panasonic RP-HF400B | Sennheiser HD 250BT |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 190 mAh | |
| Battery Life | 20 hour(s) | 25 hour(s) | Sennheiser HD 250BT lasts longer on a single charge than the Panasonic RP-HF400B. |
| Charging Time | 3 hour(s) | 3 hour(s) | The charging of both headphones last the same time. |
| WIRELESS LINK | Panasonic RP-HF400B | Sennheiser HD 250BT |
|---|
| Transmission Range | 10 m | - |
|---|
| CONNECTIONS | Panasonic RP-HF400B | Sennheiser HD 250BT |
|---|
| Connector Type | Bluetooth | - |
|---|
| OTHERS | Panasonic RP-HF400B | Sennheiser HD 250BT |
|---|
| Included Accessories | - | USB-C charging cable | |
|---|---|---|---|
| Compatibility | - | iPhone, Android phone | |
| Compliant Standards | - | Bluetooth Class 1 |
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