Toshiba 1805 - Manual (Page 160)

160 Exploring Your Options
Exploring audio features
Your new settings take effect the next time you record.
Using external speakers or headphones
Your computer is equipped with a full stereo sound system with
internal speakers. Instead of using the internal speakers, you can
connect headphones or a pair of external stereo speakers.
TECHNICAL NOTE: Use amplified speakers that require an
external power source. Other types of speakers will be
inadequate to produce sound from the computer.