Beyerdynamic Opus 900 User Manual

1. Push down the two snap locks on the right and left of the battery compartment and open it.

Remove the batteries. Refer to Fig. 1.

2. Insert two 1.5 V batteries into the battery compartment observing polarity markings. Refer to 

Fig. 2. The battery pack is secured mechanically against confusing the poles. Then close the battery
compartment again.

Fig. 1

Fig. 2

Fig. 1

Fig. 2