Fantastic news for audiophiles who live the mobile life. We have a pair of headphones that delivers all you needs so you can enjoy your music on the go: The wireless freedom of Bluetooth, the intuitive ease-of-use, the portability, the funky style. But most of all: The sound, produced by our Sennheiser drivers.
Enjoy cable free freedom and amazing Sennheiser sound. Anywhere. Any time.
Listen to well-balanced sound
You will love the sound of the HD 4.40 Wireless. This is not coincidental at all at all. This closed-backed headphone is made with proprietary Sennheiser drivers that has gone though rigorous design and testing before being allowed to transmit sound to your ears. Enjoy the amazingly well-balancedand detailed sound with deep, dynamic bass.
Freedom from wires
The HD 4.40 Wireless Bluetooth headphones are about freedom. With no cable to tangle up your life, these headphones offer the latest wireless technology and audio codec with Bluetooth 4.0 and aptX for reliable transmission and true wireless Hi-Fi sound. The Near Field Communication (NFC) ensures fast and simple pairing with NFC compatible devices.
Controls at the tips of your fingers
With the touch pad built into the earpiece you can take or make a call, change a track or adjust the volume. The intuitive ear-cup mounted controls and the integrated mic of the HD 4.40 Wireless makes this a breeze. Simply tap, slide up, slide down, sideways for a variety of functions without ever removing you device from your pocket.
Impedance 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