Sangean WR-3 (V1) - Manual (Page 21)

20
Headphone sockets
A 3.5mm Headphone Socket located on the rear of your radio is
provided for use with headphones. Inserting a plug automatically
mutes the internal loudspeaker.
3D switch
A 3D switch on the rear of your radio is to switch on/off the
3D sound effects.
Software update
When the updated software is ready or your radio need to be fit
in another country’s radio frequency standard, you can update the
software through CD, USD or SD card.
1. Download the updated software to CD, USB or SD card.
The software should be *.fwu file.
2. Insert CD, USB or SD card. When the *.fwu file is found,
the display will show the count down for 5 seconds.
3. With the 5 seconds, press PLAY button. And it will be installed
with the software.
GB