Roberts Radio Gemini 46 RD-46 - Manual (Page 18)

17
Headphone socket
A 3.5mm Headphone Socket located on the left hand side of your radio
is provided for use with either headphones or an earpiece. Inserting a plug
automatically mutes the internal loudspeaker.
Display backlight
1. When using on batteries, the display backlight will be switched on for
approximately 12 seconds when any button is pressed.
2. When your radio is powered by AC mains the display backlight will
always be switched on.