The HD 250BT deliver a thrilling audio experience, with Sennheiser’s famed transducer technology ensuring higher quality audio with dynamic bass. Thanks to a 25-hour battery life, advanced wireless technology and rugged design they can keep pace with the busiest lifestyles.

General Data

Ear coupling Supra-aural

Transducer 32 mm

Transducer principle Dynamic

Acoustic Principle Closed

Power supply: Built-in rechargeable lithium-polymer battery: 3.7 V ⎓, 190 mAh ; USB charging: 5 V ⎓, 100 mA max.

Charging time Up to 3 hrs.

Operating time Up to 25 hrs.

Temperature range Operation: 0°C to +40°C ; Charging: +10°C to +40°C ; Storage: –20°C to +60 °C

Relative humidity Operation: 10 to 80%, non condensing ; Storage: 10 to 90%

App support: Sennheiser Smart Control App for iOS and Android

Headphones

Frequency response 20 Hz to 22,000 Hz (-10 dB)

Sound pressure level (SPL) 110 dB (1 kHz/0 dBFS)

Microphone:

Microphone principle: ECM

Microphone frequency response: 100 Hz to 10,000 Hz

Sound pressure level: (SPL) -44 dbV/Pa

Microphone pick-up pattern: Omni-directional microphone Single mic

• High-quality sound with dynamic bass
• AAC, aptX codec support and aptX Low Latency
• 25-hours of battery life
• Smart Control App with equalizer function
• Advanced wireless Bluetooth 5.0 technology