Bluetooth stereo headphones with ANC function for active cancellation of background noise. Active Noise Cancellation technology is a function that counteracts and erases external noises. The padded auricles act as a passive barrier to sounds coming from the surroundings, and a microphone records those that cannot be passively blocked. An internal circuit analyzes the frequency of these sounds and creates an opposite one, of equal intensity but contrary, able to cover and cancel background noises. Their function of isolation from the surrounding environment makes these headphones perfect in many situations: at work, so as not to lose concentration even in the loudest open spaces; in free time, to immerse yourself totally in your favorite music; during travel, especially in air ones, to relax and not be disturbed by annoying background noises. With these wireless headphones you can listen to music throughout the day, because they offer up to 16 hours of music playback. Enjoy your favorite music in total freedom and without the need to carry your phone with you in every motion. They have padded earcups that ensure maximum listening comfort, also thanks to the headband it can be adjusted to any size. These headphones have a discreet and elegant design, are adjustable, resealable and convenient to carry with you all the time.