My beats pill won't do anything

I plugged in my beats pill into the charger and came back and when I unplugged it, it the green charge light and the bluetooth light stayed on but they've been on for hours and my beats pill won't do a single thing. It wont react when I push the power button and Iv'e even held the b and power button at the same time for well over a minute butt it still won't do anything and the two lights on the back remain on. Help.