Sennheiser HD4.40 BT Headphones


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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.

  • The Sennheiser HD 4 Series – Let everyday sound great

    You can take it with you. Versatile and vibrant, the new HD 4 series offers you the complete Sennheiser quality package in a range of durable, closed-back over-ear headsets that fulfill your everyday aural needs.

    Add the legendary Sennheiser sound to your everyday routine, and let your life be powered by music.

    • You are listening to well-matured sound

      When you love the sound of the HD 4.40 BT, that’s no coincidence at all. The closed-backed design of this headset is fitted with proprietary Sennheiser drivers that came a long way before being allowed to transmit sound to your ears. So, enjoy their well-balanced, amazingly detailed sound with dynamic bass.

      Strong ties that will free you

      The HD 4.40 BT is about freedom of movement. Thus, no cable. Instead you get the latest wireless technology and audio codec with Bluetooth 4.0 and aptX for reliable transmission and true wireless Hi-Fi sound.

      While Near Field Communication (NFC) ensures immediate and simple pairing with compatible devices.

      Control is all at your fingertips

      Want to take or make a call, change a track, adjust the volume? With the intuitive ear-cup mounted controls and the integrated microphones of the HD 4.40 BT all this is actually fun. Have a try.

      Comfort to make you feel at home – everywhere

      The HD 4.40 BT was made to go places with you – and make these places more pleasurable. With its around-ear design and deep, ergonomically designed ear pads it offers comfort even during extended listening sessions. Its robust foldable headband design that can be easily and compactly stored in the supplied protective case makes for perfect portability.

        • 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)
          Battery Specification Li-ion Polymer Battery