Nokia Mini Speakers MD-9 - Manual (Page 6)

ENGLISH
that has a standard 3.5 mm audio connector, insert the audio plug into
the connector in your device.
To connect the speaker to a compatible Nokia device that has a Nokia 2.5
mm AV connector, connect the appropriate adapter (if supplied) to the
device and the audio plug to the adapter.
To switch on the speaker, slide the power key to the ON position. The
indicator light turns on. To switch off, slide the power key to the OFF
position. The indicator light turns off.
To listen to music when the speaker is connected to a compatible device,
start the music playback on the device.
To set the volume, use the volume controls on your device. If the sound
level of the speaker becomes too low or you hear a continuous beep from
the speaker, change the speaker batteries.
Warning: Listen to music at a moderate level. Continuous
exposure to high volume may damage your hearing.