I have been looking for an inexpensive (i.e., sub-Php1,000) portable speaker system for office use that could deliver soft audible music when played during office hours, but could also deliver loud-enough audio for everybody to enjoy tracks after office hours.
Then, I happened to bump into this Divoom Iris-02 at Switch in Park Square 1.
The speakers were small they can easily fit in your bag, and yet can deliver a level of sound loud enough they can startle everyone in the office if dialed to full volume. They are powered by USB, so they can deliver up to 10 times as loud the sound of normal built-in laptop speakers.
The speakers have no subwoofer, so they can’t really replicate the sound of a true stereo system. But then, you are not in a party, instead in an office trying to enjoy music while being ‘busy’ at work.