Nokia MD-3 Manual page 2

Chargers
Check the model number of any charger before use with this device.
The device is intended for use when supplied with power from the
AC-4 charger.
Warning! Use only chargers approved by Nokia for use
with this particular device. The use of any other types may
invalidate any approval or warranty, and may be dangerous.
When you disconnect the power cord of any enhancement, grasp and pull
the plug, not the cord.
ENGLISH