... description:4 colours available(red,yellow,green,blue)Power:press"play"button,the status lights will turned on ... light flashes once,turned intoBarrier options:Suspended state,press Next button to skip to the next level ... level,each level have 10 small pointsVolume control:Press Play key to volume down,the left ... light will flash slowly.Shutdown:Press Play button to turn on the power and switch off is on ...