inputs.text: volume control not work battery not charge - problem cant control volume increasevolume key worked decreasevolume key not increased sentey speaker volume max use tablets volume control increasevolume bad would luck would sent back way usable inconvenient maybe sound quality suffers btw decreasevolume key never worked way came amazon 2 months purchase battery wont charge reduce 1 star id go zero option late return speaker means away wasted 45 sure wont ever buy anything sentey brand