Universal portable active speaker system with built-in Li-ion battery 22.2V/1.3Ah. Battery life is up to 6 hours of operation. The plastic enclosure is equipped with a 6.5" bass speaker and a 0.8" tweeter. It has a built-in USB/SD/MP3 player with Bluetooth connection and the TWS function, which allows pairing two speakers to one sound source. It has 2 balanced MIC/LINE switchable inputs (XLR) and 1 balanced line output (XLR). The built-in digital amplifier has high efficiency. The speaker system can also be placed on a stand with a diameter of 35 mm.