Dual power supply of solar-powered and backup battery and backup battery, worry-free in any light condition. and the calculator also has an auto-off function, the calculator will automatically turn off after 5 minutes without operation Comfort to use; The calculator is equipped 30-degree tilted acrylic stand with an ergonomic viewing angle and convenient for your operation, large and clear LED display for easy reading. The calculator and stand are equipped with non-skid feet to ensure safety and stability to use on any surface Unique design; Clear acrylic with gold modern design style will make a unique and stylish addition to your workplace. EXPUTRAN designs full kits of gold and silver-toned desk accessories to suit different themes for your office and home Package Include; Acrylic Calculator x 1 (5.9" x 4.5" x 0.35"); Acrylic Stand x 1 Satisfaction guarantee; EXPUTRAN offers a 100% SATISFACTION GUARANTEE. If you're unhappy with your order, let us know and we'll provide a refund or replacement. Hassle-free and no questions asked