Calculator Handwriting Board Business Office Student Straight Board Calculator 12 Digit Solar LCD Handwriting Board Calculator Features: Efficient and energy-saving: The solar powered LCD handwriting board calculator uses solar energy as its energy source, without the need for batteries or plug-in, saving energy costs. It is environmentally friendly and energy-saving, but can also be used with battery swapping. Multi functional: In addition to serving as a calculator, the solar LCD handwriting board can also be used for handwriting notes, drawing, recording notes, etc., with various practical functions. Lightweight and Portable: Due to the use of LCD display screens and solar power, the handwriting tablet calculator is compact and lightweight, convenient to carry, and can be used anytime and anywhere, making it very suitable for students and business people to use. and Health: The solar powered LCD handwriting board calculator adopts a non radiative LCD display screen, which is healthier for the eyes and reduces environmental pollution. High definition display: The LCD display screen adopts high-definition technology, with clear display effect, speed, and good user experience. Product Description: Efficient and energy-saving: The solar powered LCD handwriting board calculator uses solar energy as its energy source, without the need for batteries or plug-in, saving energy costs. It is environmentally friendly and energy-saving, but can also be used with battery swapping. Multi functional: In addition to serving as a calculator, the solar LCD handwriting board can also be used for handwriting notes, drawing, recording notes, etc., with various practical functions. Lightweight and Portable: Due to the use of LCD display screens and solar power, the handwriting tablet calculator is compact and lightweight, convenient to carry, and can be used anytime and anywhere, making it very suitable for students and business people to use. and Health: The solar powered LCD handwriting board calculator adopts a non radiative LCD display screen, which is healthier for the eyes and reduces environmental pollution. High definition display: The LCD display screen adopts high-definition technology, with clear display effect, speed, and good user experience.