User manual SONY MDR-AS40EX

[. . . ] Road safety Never use headphones while driving or cycling, etc. It can be dangerous to turn up the volume too much even while walking. [. . . ] Doing so may hinder your hearing and can be hazardous especially at level crossings or pedestrian crossings. Caring for others Remember not to disturb people around you with the sound leaking from your headphones. Keep the volume level moderate even in noisy places so that you will be able to hear other people when they talk to you. notes on usage · Do not put weight or pressure on the headphones as it may cause the headphones to deform during long storage. ⷠDo not subject the headphones to strong shock by dropping or banging. ⷠHandle the unit part with care. ⷠDo not leave the headphones in a location subject to direct sunlight, heat or moisture. 100 kHz reproduction The newly-developed Nanocomposite HD (High Definition) Driver Unit reproduces ultra-wideband from low to 100 kHz by only one unit. Porous housing By adopting a porous housing with a cellulose material finished to give appropriate air-flow resistance, unpleasant resonance is minimized and eliminated some weights of the unit. ⷠWiden headpad By expansion of the width of the headpad to ensure wider contact area to diffuse the pressure on the head, and adoption of high elastic mesh fabric, gives a natural wearing comfort with light weight and good ventilation. ⷠ360 kJ/m3 high power neodymium magnets are used to reproduce clear mid-range sounds and wealthy low range sounds. 80 kHz reproduction The newly-developed HD (High Definition) Driver Unit reproduces ultra-wideband from low to 80 kHz by only one unit. Porous housing By adopting a porous housing with a cellulose material finished to give appropriate air-flow resistance, unpleasant resonance is minimized and eliminated some weights of the unit. ⷠWiden headpad By expansion of the width of the headpad to ensure wider contact area to diffuse the pressure on the head, and adoption of high elastic mesh fabric, gives a natural wearing comfort with light weight and good ventilation. [. . . ] Porous housing By adopting a porous housing with a cellulose material finished to give appropriate air-flow resistance, unpleasant resonance is minimized and eliminated some weights of the unit. ⷠWiden headpad By expansion of the width of the headpad to ensure wider contact area to diffuse the pressure on the head, and adoption of high elastic mesh fabric, gives a natural wearing comfort with light weight and good ventilation. [. . . ]