Simplify the following text for a Grade 4 native English-speaking person.
Original: SOS is the commonly used description for the international Morse code distress signal ( Â Â Â â '' â '' â '' Â Â Â ) .
Simplified: SOS ( Â Â Â â '' â '' â '' Â Â Â ) is a Morse code . It is used as distress code , to signal danger .