Inserting and removing the batteries/rechargeable batteries
You can operate the handheld transmitter either with batteries (AA, 1.5 V) or with the rechargeable Sennheiser BA 70 battery.
- Unscrew the microphone housing as shown in the figure and pull it down as far as it will go.
- Insert the batteries or the BA 70 rechargeable battery as indicated in the battery compartment. Observe correct polarity.
- Screw the microphone housing back on.
Note about the BA 70 rechargeable battery
- Make sure that the BA 70 rechargeable battery is inserted as follows: