Roberts Radio CR9935 - Manual (Page 21)

Demonstration mode
Your radio is equipped with a demonstration mode which when active
highlights the main features available on your clock radio.
1. Press and hold down the Display button until the display enters
Demonstration mode.
2. Press any key to cancel demonstration mode.
Headphones
1. A Headphone Socket (3.5mm) located on the left hand side of your
radio is provided for use with either headphones or an earpiece.
Inserting the headphone plug automatically mutes the internal
loudspeaker.
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