Hi,my dear angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. Rechargeable Calculator Foldable Handwriting Pad Business Office Portable Scientific Calculator LCD Handwriting Pad Smart computer tablet, portable multi-purpose computer, silicone button 12-bit display and handwriting screen. Can be written repeatedly 5W+ times, -free and ink-free LCD handwriting screen, no light, no blue light. Universal Type-C charges both mobile phones and computers correctly, and allows long-term standby. The autonomous computing chip can quickly process multi-digit operations and give answers. It is lightweight and can be folded in half for easy portability, and has a one-click screen lock function to accidental deletion. The product includes: Calculator * 1 pen * 1 Smart computer tablet, portable multi-purpose computer, silicone button 12-bit display and handwriting screen. Can be written repeatedly 5W+ times, -free and ink-free LCD handwriting screen, no light, no blue light. Universal Type-C charges both mobile phones and computers correctly, and allows long-term standby. The autonomous computing chip can quickly process multi-digit operations and give answers. It is lightweight and can be folded in half for easy portability, and has a one-click screen lock function to accidental deletion.