The bass of the heads is very good.i use it evrey day .is ko me har rozz use karta ho .me boht kohs ho isee use kr ke .i think is ko tohra sa r behter banna chaae .the product is little slow shoud be a good and be a good .i am very happey to use it I lkve. It very much and love u very mutch .i gift it to my brother and .