Hi I hope everyone who purchased this product,are enjoying the great sound that is coming from the speakers.This speaker backpack is really loud, and I have one. People always asking me, man where did you get that. I even had Females asking me if they could record me blasting my music. Where I live at people gave me a nick name, I'm called ''THE SPEAKER BACK MAN". Buy one you won't regret it. (●'◡'●)