Best Portable PA Systems for classrooms

The deciding question is who carries it and how often it gets charged. A portable system lives on a trolley between a gym, a hall and a car park, and the one that fails is the one whose battery was flat because nobody owned the charging. Runtime quoted at low volume is not runtime at the volume a full gym needs.

After that it is about what is already built in. A unit with its own receiver and a handheld transmitter is one thing to sign out; a unit that needs a separate mixer, a separate receiver and three cables is four things to lose. Weight matters more than specification when the person carrying it teaches full time.