Infiniton SOUND K50 Manual De Usuario página 11

G. Mute
Press once to mute the sound under any mode.
G.Previous Song
In USB/TF mode, press once to go back to the previous song; press
and hold for 3 seconds to rewind the current song.
In Wireless BT mode, press once to go back to the previous song.
H.Next Song
In USB/TF mode, press once to skip to the next song; press and
hold for 3 seconds to fast forward.
In Wireless BT mode, press once to skip to the next song.
I.Volume-
Press to turn the volume down in any mode.
J.Volume+
Press to increase the volume in any mode.
K.Repeat
Under USB/TF playing mode,Press to repeat one song or repeat all
songs.
L.U/SD
Press to change USB/CARD function.