ROATEE 991ES Plus Hybrid: 4-Line Scientific Calculator & Erasable LCD Notepad - Solar Powered for School & Beyond

ROATEE 991ES Advanced Scientific Calculator] - Elevate your calculations with the ROATEE, boasting an impressive 417 functions - a step above the rest for all your computing needs, whether for business or daily tasks. [Innovative Calculator & Notepad Combo] - Merge math and note-taking with this cutting-edge tool designed for students. Featuring a stylus-equipped LCD notepad, it lets you jot down thoughts alongside calculations, enhancing your study and work efficiency. A must-have for the academic toolkit! 【NOTE】Remember to unlock the LOCK KEY to activate the notepad and erasure features. [Solar & Battery Powered for Reliability] - With its dual-powered design, incorporating both a replaceable coin battery and solar panel, this calculator ensures continuous operation without the worry of running out of juice. [Built Tough to Last] - Crafted to withstand the rigors of daily use, its anti-drop design has been thoroughly tested for durability, offering peace of mind against accid