Sennheiser HD 4.40BT Wireless Headphones

Sennheiser HD 4.40BT Wireless Headphones. 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.

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.

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 unmatched 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.

Signature Sennheiser Sound

Proprietary drivers used in the HD 4.40BT Wireless deliver detailed and well-balanced sound with satisfyingly dynamic bass. Listening sessions are pure joy – no matter the genre.

Wireless Freedom

The HD 4.40BT Wireless is equipped with Bluetooth 4.0 featuring aptX codex compatibility providing wireless freedom of movement and exceptional sound quality.

Great Wearing Comfort

Soft leatherette covered ear pads provide exceptional wearing comfort for long listening sessions.

Instant Pairing via NFC

Hassle-free Bluetooth connection is accomplished using Near Field Communication (NFC) with compatible smart devices.

Perfect Portability

Side-swiveling ear cups and a robust foldable headband design ensures the HD 4.40BT Wireless can be easily and compactly stored in its supplied protective case.

Intuitive Controls

Intuitive ear-cup mounted controls make adjusting volume, changing tracks, and managing incoming calls via the integrated microphones a breeze.

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: AptX

Specifications

Sennheiser

Sennheiser is shaping the Future of Audio – a vision built on a 70-year history of innovation and a continued drive for excellence that is woven into our company’s DNA and culture. Around the world, our employees share this passion in the pursuit of the perfect sound, creating products that exceed expectations and set new benchmarks in audio.

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