Sennheiser HD4.40BT

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The new Sennheiser HD 4.40 BT offers high-quality wireless sound for every day listening on the move. The closed-back, around-ear headset features Bluetooth 4.0 and aptX compatibility to deliver true Hi-Fi sound with a satisfyingly dynamic bass. Its elegantly minimalistic design has been crafted from robust, high-quality materials to meet the requirements of the street.

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Technical Data

  • Impedance
    18 Ω
  • Frequency response (Microphone)
    100 – 10,000 Hz
  • Frequency response
    18 – 22,000 Hz
    • Sound pressure level (SPL)
      113dB (Passive: 1kHz/1Vrms)
    • THD, total harmonic distortion
      <0.5% (1kHz/100dB)
    • Pick-up pattern
      Dual omnidirectional microphones
    • Battery Specification
      Li-ion Polymer Battery
    • Codecs