|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'm not a specialist but Thank for this product, i'm happy with it.
Sound is clear with good balanced bass. The whole thing fit well on the head and is light weighted making itself forgotten. Earings cover well.
There is a micrologiciel embeded which allow update of the product when you're online.
Battery seems ok.
Pearing is easy.
May be a future update will solve the only flaw i see : If you'd like to go from min to max (or from several range of volume) you're obligated to push button as many time as needed (Vs keeping it pressed once untill volume needed).
But anyway a good device for me.
HD 250BT Phased Out
La qualité Sennheiser est au rendez vous, à un prix génial.
Great product and works amazingly, having owned a couple of pairs of HD-25 a number years, this is the first time I have been in need of over ear headphones again, first place I looked. However, straight after check-out, I was direct to the outlet site, where a seaming same product for 30% less because it is being "Phased Out" which makes me feel ripped off.
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- press the space key then arrow keys to make a selection