|Transducer principle (Microphone)||ECM|
|Sound pressure level (SPL)||110 dB (1 kHz/0 dBFS)|
|THD, total harmonic distortion||< 0.3 % (1 kHz, 100 dB SPL)|
|Transducer principle||dynamic, closed-back|
|Pick-up pattern||Omni-directional microphone Single mic|
|Operating time||25 hrs (music playback via SBC) with headphones' rechargeable battery|
|Power supply||built-in rechargeable lithium-polymer battery: 3.7 V ⎓, 190 mAh USB charging: 5 V ⎓, 100 mA max.|
|Operating relative humidity||Operation: 10 to 80%, non condensing Storage: 10 to 90%|
|Temperature Range||operation: 0°C to +40°C charging: +10°C to +40°C storage: –20°C to +60 °C|
|Charging time||up to 3 hrs|
|App support||Sennheiser Smart Control App for iOS™ and Android™|
|Frequency response||20 Hz to 22,000 Hz (-10 dB)|
|Frequency response (Microphone)||100 Hz to 10,000 Hz|
I bought them for 40€ on sale to use with my chromebook which has no headphone jack. Turns out, they aren't the ultimate headphones but for the price, they are downright insanely good. I would have preferred them to sound a little more analytical, but you get an EQ in the app, so this is solvable. They feel robust and made to last. A little padding for the head would have been nice though, even if it had meant eventually having to replace it. Padding doesn't last forever, but I'd take that for the additional comfort. Weight is... not an issue with these things. They are VERY light, making them quite comfortable and they cause no trouble with my glasses. Just overall nice headphones with small flaws but no critical downside.
That is goooood
For an inexpensive wireless set they're a good sound and a decent build. A very good battery life as well makes these a 'sound' choice (sorry!)
I'd buy again!
The HD 250BT shows how Sennheiser - time and time again - hit the sweet spot in every market sector they tackle. It lacks frills (so no ANC) but looks good (shades of the legendary HD 25), seems robust, is comfortable to wear, and pairs easily with the host bluetooth device. The all-important audio quality is first-rate, with well-controlled bass, clear midrange and fatigue-free high frequencies. The HD 250BT is superb value for money, and comes highly recommended.
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