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Meet the Sennheiser HD 4.40BT Wireless
The new Sennheiser HD 4.40BT Wireless offers exceptional sound for every day listening with mobile devices. The comfortable closed-back, around-ear headset is powered by proprietary Sennheiser drivers that deliver a well-balanced, amazingly detailed sound with dynamic bass. Bluetooth wireless technology ensures hassle-free pairing and reliable transmission with smart devices. Its elegantly minimalistic design with foldable headband has been crafted from robust, high-quality materials to meet the requirements of the street.
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.
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.
Side-swiveling ear cups and a robust foldable headband design insures the HD 4.40BT Wireless can be easily and compactly stored in its supplied protective case.
Intuitive ear-cup mounted controls make adjusting volume, changing tracks, and managing incoming calls via the integrated microphones a breeze.
Wearing Style - Around Ear
Transducer Principle - Dynamic, Closed
Connectivity - Buetooth 4.0 / NFC Pairing
Frequency Response - 18 - 22,000 Hz
Impedance - 18 ohms
Sound Pressure Level (SPL) - 113 dB (Passive: 1 kHz /1 Vrms)
Total Harmonic Distortion (THD) - <0.5% (1 kHz / 100 dB)
Battery Life - Up to 25 Hours
Weight (Headphones) - 7.9 oz. (225 g)