Nokia MD-8 User Manual page 6

To connect the speakers to a compatible Nokia device that has the 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 speakers, slide the power key to the right. The white
indicator light turns on. To switch off, slide the power key to the left. The
indicator light turns off.
To listen to music when the speakers are 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 speakers becomes too low, change the speaker batteries.
Warning: Listen to music at a moderate level. Continuous
exposure to high volume may damage your hearing.
To take the speakers with you, switch them off, coil the
speaker cable, and insert the audio plug into the slot on the coil.
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