The first of the speaker is, the color looks really good with orange and black and I had charged with USB changing and I charged with power bank as well, both were working fine. And it 4 simple controls power ON/ OFF, pause/resume, Vol+, and Vol- and the bass and stereo bass sound look really good. even when I am doing biking in noisy areas
the sound looks pretty decent. With a single charge, it served for my complete outdoor trekking. It had splash proof for rain protection.
The only option I am looking for the next version is the mic for phone calls and power bank for a mobile charge.