The flexible keyboard calculator has classic round keycaps, flexible mechanical , and built-in silicone, which makes people feel light and comfortable when using, and has a strong sense of rhythm in paragraphs, which can effectively relieve hand fatigue.Professional mechanical switches fast and key operation for a pleasant experience. The touch of your finger and clicking sound are addictive. Big buttons, colors. LCD screen, 12-digit display, vertical back, 15-degree , easy to read calculatorPortable: Lightweight and compact, does not take up space, with non-slip mat, stable placement, very convenient for daily use. You can take it with you while working or traveling.Smart: Smart shutdown, super long battery life, automatic shutdown after a few minutes of standby, saving power; the ABS material is strong and thick, and the characters on the buttons are highly wear-resistant; the detachable keycaps are easy to clean. Available in 4 colors, suitable for personal use or gift giving.color:YellowMaterial:plasticsize:152 x 132mmPackage Contents:1 x Mechanical Switch CalculatorOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.