How do i save settings like Volume and EQ ….after i increase it?
EQ & last song can only be done when player switch to pause…or pause before you off….

What happens after i pause the player?
Pause for more than 15 seconds will make the device to go to sleep. The unit is in standby mode.
To wake up from standby mode, press and hold play button.

How do i enter USB mode to transfer songs?
To enter USB mode, just plug in the USB cable at any slide switch position at any state.

How do i reset the player?
To reset, switch off completely and on again.

How do i know battery is in low state?
When low battery, blinking Blue LED  will turn to Red blinking light for 30 seconds before going standby. When turn on again, Red LED will be blinking.