Health and Environmental Protection: Blue matte LCD screen, eye-protecting. Repeated writing reduces paper use, eco-friendly, dust-free, ink-free. Clear button erases notes, protecting privacy. Improve Learning and Work Efficiency: 6-inch calculator and erasable LCD notebook integrated, with attached handwriting pen. Take notes while calculating, enhancing efficiency. Lightweight and Portable: Pocket mini calculator with erasable writing pad, foldable design, lightweight. Compact, fits in pocket, ready to use instantly. Silent Design: Premium silicone keyboard, soft touch, quiet, noise-free. No interference when calculating. Durable: Carefully crafted with non-detachable, wear-resistant silicone buttons. Close like a book after use to protect keyboard. Specification: Item Type: Calculator with Notepad; Material: ABS+LCD; Battery: Built-in CR2025 button battery; Capacity: 170mAh; Product Size: 150x90x15mm / 5.91x3.54x0.59in; Notepad Size: 6in; Number of Digits: 10+2bit. Color: as shown.