Once you get it to turn on, then its a breeze. First time you press the Menu button, you will see the settings for treble, bass and balance in that order. You scroll down, and you'll see gain (0db, 6db, 12db) - this mostly depends on the impedance of your headphone, usb charging (on/off), sleep, max vol, vol memory, system (fw, runtime, default set) (can somebody explain what that is?). Below the menu button, you have the input button where you toggle between the zillion inputs that this beast has. And below that is that darn hold switch.