RIP TUNES MP-1825 User Manual page 7

Do not install foreign software onto your digital media
player. Additionally, the software for this player cannot
be used on other players.
Only use the enclosed adaptor to charge your battery.
Permanent hearing damage or hearing loss may
occur if earphones are used at a high volume. Hearing
experts advise against continuously listening to music at
a high volume. If you hear a "hiss" in your ears, lower the
volume, or stop listening.
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