Welcome to our store! 1、[Practical] Combining a desktop calculator and a writing tablet, this writing pad can calculate and record whatever you want. 2、[Portable] With a flip design, it's easy to carry. You can put this mini calculator in a bag, pocket, or wallet. 3、[Rechargeable] Equipped with a charging cable, this calculator writing tablet is a perfect choice for office, business, and home use. 4、[Low Power Consumption] The calculator writing tablet has low power consumption, no radiation, energy saving, and environmental protection. 5、[Easy to Use] There is a key to clear the screen, write smoothly, can be erased repeatedly, and is easy to use. Item Type: Calculator Writing Tablet Material: ABS Function: Calculation, Desktop Scope of Application: It can be used for drawing design, drawing, note taking, communication, calculation, counting, etc. Built-in Battery: Polymer 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: 90 min Includes: 1 x Calculator Writing Tablet 1 x Charging Cable 1 x Stylus 1 x User Manual Customer satisfaction is our top priority. If you encounter any issues with your product upon receipt, such as damage or incorrect quantity, please contact us immediately. We are committed to providing you with the best after-sales service.