Sennheiser’s HD 250BT deliver a thrilling audio experience with dynamic bass, state-of-the-art Bluetooth connectivity and durable design. Thanks to a 25-hours battery life and advanced codec support, Sennheiser’s higher quality audio experience can be enjoyed anytime and anywhere. Our famed transducer technology as well as support for high-quality codecs such as aptX™ and AAC ensure remarkable audio quality with dynamic bass for a DJ-inspired sound. Rock-solid Bluetooth 5.0 connectivity assures a better listening experience, while aptX™ Low Latency keeps audio perfectly synchronized with onscreen action when enjoying video. Whether listening to music, watching videos or taking calls via the built-in microphone, the HD 250BT can keep pace with the busiest lifestyles thanks to its outstanding 25-hours battery.

Wearing style	Headband
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)
Ear coupling	Supra-aural
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
Weight	approx. 125g

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