• Sennheiser: HD 4.40 BT Bluetooth Headphones - Black
  • Sennheiser: HD 4.40 BT Bluetooth Headphones - Black
  • Sennheiser: HD 4.40 BT Bluetooth Headphones - Black

HD 4.40 BT Bluetooth Headphones - Black

↳ detailed sound, on-ear controls + wireless bluetooth connectivity

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  • wireless hi-fi sound via Bluetooth 4.0 and aptX technology
  • closed-back design delivers detailed sound + dynamic bass
  • intuitive ear-cup mounted controls + making calls w/ the integrated mic
  • sleek, elegant frame
  • ergonomic adjustable headband
  • memory foam earpads for comfortable extended listening

"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." - Sennheiser


  • Bluetooth codec: AptX
  • Impedance18 Ω
  • Frequency response: 18 - 22,000 Hz
  • Frequency response (Microphone): 100 - 10,000 Hz
  • Sound Pressure Level (SPL): 113 dB
  • THD: <0.5%
  • Impedance: 18Ω
  • Battery life: up to 25 hours per charge


  • 1.4 m audio cable
  • 3.5mm angled / gold-plated adapter plug
  • USB charging cable

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