TONOR TW450 Bedienungsanleitung Seite 10

When the receiver is connected to power supply successfully, but the
batteries of microphone are not installed, LCD screen will display as
following pictures:
When the receiver is connected to power supply successfully, and the
batteries of microphone are also installed, LCD screen will display as
following pictures:
888.8
CHA CHB MHz
US VERSION
EU VERSION
08
888.8
CHA CHB MHz