Medion MD 80137 - Manual (Page 22)

Please don’t use different brands or types of batteries together. Don’t use a new
and an old battery together.
If you find the remote distance is reduced, please change both batteries at the
same time.
If the DVD recorder won’t be operated for an extended period, remove the batteries
from the remote control. Otherwise the remote control may be damaged.
Don’t place the remote control in areas with high temperature or high humidity.
Don’t open the case of the remote control.
22 MD 80137 Digital DVD Recorder
and Player User’s Manual
control buttons and display