SLD-BAT-USB Soldering Magnifier with dual helping hands 3" inch 3x lens with 4.5x bifocal with Brilliant 10 LED illumination. Comes with 2 fully adjustable alligator clip style helping hands, metal coiled iron holder, and metal work tray. Ergonomic and modern design make this the ideal working magnifier for soldering, repairing electronics and computer boards, micro assembly, jewelry, arts & crafts, model makers, and electronic contact soldering and repair. Flexible lens arm feature allows for unlimited angle adjustment for the ideal working angle, LED's are built into the lower magnifier lens ring and provide incredible illumination of work work area.. This model is both Battery powered 3 "AAA" or USB powered from a computer or portable usb charger. Comes with USB power cord.