23EnglishAudio settingTimer settingVolume • Press to decrease the volume.• Press to increase the volume.Mute • Choose "On" to mute the volume.• Choose "Off" to restore the volume.Power On/Off Volume • Select this function to adjust the notification volume whenturning the projector on/off.Alarm Volume • Select this function to adjust the volume of any warningnotifications.Timer Start • Press to start or stop the timer.Timer Period • Press or to adjust the timer period.Timer Volume • Select this function to adjust the notification volume whenthe timer function is enabled and time is up.Timer Display • Press or to which timer mode to display on thescreen.Timer Location • Choose the location of the timer on the screen.