Expandable capacity 3600wh to 21600wh for your power need voice control,wifi,blueteeth,touch screen simple operation, easy to use. Ups function: nerver run out of the power long-lasting powerhouse designed for 10 years of everyday use power-saving mode save on energy costs switching to power-saving mode extends standby time and minimizes battery damage. Quiet mode no noise,no fumes,just sustainable power ergonomic and ultra-portable design power anywhere with allpowers s4000 enjoy your family time
