Infitrans lighted make up mirror

3 Folds Lighted Vanity Makeup Mirror,1X/2X/3X Magnification, 21 LED Light Bright Table Mirror with Touch Screen, 180 Adjustable Rotation, Portable Travel Cosmetic Mirror [DUAL POWRE SUPPLY] This LED light vanity mirror can either be powered by 4 pcs AAA batteries ， or plug in USB cable ( pls noted the mirror can't store power by itself).