JBL is itself an amazing brand so you could things of the quality of product. jbl pulse speaker is so awesome sound quality is so pleasant to ear. thr additional feature they had added to this speaker is the led light. combination of various colors increases and decreases proportional to volume.
I havnt find any problem in Bluetooth connectivity.
its overall look is so awesome and blck n white color enhanced the look of this jbl pulse.
although charging usb is small but thats fine every speaker come with small USB.
you will not find any decreasing n increasing volume feature in it it totally controlled by phone if you will decrease volume of phone speaker sound will also decrease n vicaversa.
I will say that its really value for money and I personally love this speaker.