The earphones developed by our team are designed for constant wearing during the day alternately in one of two positions: in "quality" position (Fig.1) for talking and listening to music, when the earphone is inserted into the ear canal and cuts off third-party sounds by passive noise reduction, or in "comfort" position (Fig.2) for background music and notifications from device, when the earphone is in the concha cavum and does not block the ear canal, which allows you to monitor sounds from the earphone, and at the same time control noises of the surroundings.

Such earphone construction allows  to keep the earbud in the ear in either of the two positions all day long without removing. 

Hi-end cable in the form of special configuration loop is designed for comfortable use of earphones. The cable can be used with phones, players and Bluetooth headsets. Thanks to occipital node, wires tightly fit the head passing over the ears. The node provides reliable fixation of earphones in ears with any head moves. Wires allow to obtain powerful sound without frequent recharging of earphones.