This portable sound system may be small but it's loud with 150W of pure Class D power to it's bi-amped 8" 2-way speaker system. It's AC or DC battery powered giving up to 6 hours of playtime from the inbuilt battery.
It has a smart charging circuit with a 4-step battery LED indicators and charging LED. It has a 3 band EQ and an auto limiting circuit to protect the amp and speakers. It will take a Smartphone/MP3 player connection via cable or with the inbuilt Bluetooth module.