The Technics premium eah-f70n Hi-Res wireless headphones deliver high-resolution sound with Bluetooth and lad/apt-X HD formats. Dynamic-tuned 40mm drivers and a diaphragm developed with composite performance film (cpf), laminated with a plurality of special materials achieves high rigidity and high internal damping. The result is a powerful bass that makes you feel you're in a concert Hall. Hybrid active noise-cancelling provides instant reduction via Three-mode selector to suppress noise levels in varied environments: High mode where noise level is high, such as airline cabins and subways; medium mode for moderate noise such as buses and trains; and low for cafe conversations and everyday street noise. The Technics eah-f70n includes a playback pause sensor that stops the music when the headphones are removed, and resumes when placed back on the head. An ambient sound Enhancer enables you to hear background sounds, such as announcements made on a train or in an airport by simply touching the outside of the right ear pad Housing, without removing the headphones. The sleek and slim profile and lightweight aluminum body ensure a natural wearing style and supreme comfort with a 3D ball joint mechanism designed for three-dimensional movement of the ear cup to conform to the ear at a comfortable angle. Leather covered, ergonomically designed ear pads are crafted with a low-resilience urethane foam to ensure a snug fit around the ears, and maintain high sealing and sound insulating performance. The Technics premium eah-f70n Bluetooth headphones include voice assist with services such as Siri in your smartphone to make phone calls, select music titles and link to music streaming services. A long-life battery powers the headphones for approx. 20 hours on a full, four-hour charge, and up to two hours with 15-minute quick charge. The Technics eah-f70n headphones premium packaging includes a USB charging cord, detachable 3. 9 ft. Audio cord, airplane adapter and travel case.