The European Union has updated volume standards for portable devices that play music, such as MP3 players and mobile phones. Going forward, new products will be required to maintain their default setting at 80 decibels. The new rules upgrade EU directives CEN, CENELEC and ETSI, which require that warnings about the dangers of listening to music at high volumes be included in device instruction manuals. They will be adopted after a two-year consultation period with industry, consumers and the medical community.