Calculator Writing Tablet 6.5in LCD Chargeable Portable Paperless Drawing Handwriting Board

[Practical] Combines a desk calculator and a writing pad, this calculator writing tablet can calculate and record what you want. [Portable] With a design, easy to carry. You can put this calculator writing tablet in a bag, , or wallet. [Rechargeable] Equipped with a charging cable, this calculator writing board is a perfect choice for , business and home use. 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 celsius to 40 celsius Charging Voltage: 4.2V to 5V Standard Charging Current: 125mA Standard Charging Time: 90min