Calculator, Standard Function Calculator with 6.5inch LCD Writing Tablet, Portable Calculator Notepad, Handwriting Board for DailyOfficeSchool (White)

How to Use: Open and Use Specification: Item Type: Calculator Writing Tablet Material: ABS Function: Calculation, Writing Board Scope of Application: It Can Be Used for Drawing Design, Drawing, Note Taking, Communication, Calculation, Counting, Etc. Built in Battery: Lithium Battery Built in Battery Capacity: 120mAh Built in Battery Model: 402020 Working Temperature: -10? to 40? Charging Voltage: 4.2V to 5V Standard Charging Current: 125mA Standard Charging Time: 90min Package List: 1 x Calculator Writing Tablet1 x Charging Cable 1 x Stylus 1 x User Manual Note: Shipped with Built in Battery