Do you have a question about the Roberts eco 4 Bt and is the answer not in the manual?
Details on using the 3.5mm headphone socket.
Details on connecting external audio sources via the auxiliary input.
How to connect the radio to AC power.
How to use the USB port for software updates.
Important safety warnings and usage precautions.
How the display and button backlights operate.
Technical details and specifications of the radio.
Details about the radio's internal circuit components.
Details on using the 3.5mm headphone socket.
Details on connecting external audio sources via the auxiliary input.
How to connect the radio to AC power.
How to use the USB port for software updates.
Important safety warnings and usage precautions.
How the display and button backlights operate.
Technical details and specifications of the radio.
Details about the radio's internal circuit components.