- Power Source: Battery
- Material: plastic
- Applicable Battery Type: Coin Batteries
- Model Number: s9
- Max. Digits: 10
- Style: Scientific
- Brand Name: TONLISH
- Origin: Mainland China
- button battery quantity: 2pcs
Product name:LCD writing tablet calculator
Style: Scientific calculator
Battery type: Button cell CR2025
Material: ABS+Silicone button
Calculator size:160*78*12mm
Colour: black
Application: school, office, children’s gift
Packing list: 1 calculator+1pen+1 manual
Power supply mode: The calculator and the handwriting board is powered by button batteries.
Button battery quantity: 2pcs
• 10-digit display, silicone button
• Long battery life
• Portable, foldable and handy size
• One click to erase, Lock key
• Durable, shatterproof plastic LCD
• Paperless writing
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