User manual SONY WM-D6C

[. . . ] The maximum volume is kept down to protect your ears, even if you turn the volume up. Set the OFF/MEGA BASS switch to MEGA BASS to produce deep and powerful sound. [. . . ] Set the OFF/MEGA BASS switch to MEGA BASS to produce deep and powerful sound. note · Do not open the cassette holder while the tape is running. Clean the tape head and tape path using a cotton swab and commercially available cleaning solvent after every 10 hours of use. There is a tactile dot beside VOLUME on the main unit to show the direction to turn up the volume. Do not carry dry batteries with coins or other metallic objects. It can generate heat if the positive and negative terminals of the batteries are accidentally contacted by a metallic object. It may create a traffic hazard and is illegal in some areas. It can also be potentially dangerous to play your headphones/earphones at high volume while walking, especially at pedestrian crossings. You should exercise extreme caution or discontinue use in potentially hazardous situations. Hearing experts advise against continuous, loud and extended play. If you experience a ringing in your ears, reduce volume or discontinue use. This will allow you to hear outside sounds and to be considerate to the people around you. [. . . ] Hearing experts advise against continuous, loud and extended play. If you experience a ringing in your ears, reduce volume or discontinue use. [. . . ]