??Solar & Battery PoweredSolar powered and back-up battery are supported. Make sure the solar panel under the lit environment, it will power up the calculator without battery. Not included battery.??Elegant Practical DesignThe ultra thin plate calculator with a slim body has a stylish and elegant appearance. The 12-Digit LCD display, large screen easy to read and hit. The beautiful clear crystal keys are very practical and more efficient.??Size & WeightSize: 4.3 x 7.1 x 0.5 inch (10.8 x 18 x 1.3 cm). Weight: 4 oz / 115g. It can be a pocket calculator. Thickness of the body is only 0.5 inches, and can be easily put into backpacks and pockets.??Multify PurposesThis calculator with standard function is suitable for many occasions: business, office, home, basic budgeting, school, and more. Use it to assist your personal finance or just a quick calculation.??Automatic shut-downON is powered on button. The electronic calculator will shut dowutomatically after you stop operating for 8-10 minutes.