How to replace the 3V Coin Battery? When the erasing function fails, please consider replacing the button cell. 1. Take out the screw. 2. Push the switch on the right side. 3. Pull the battery case Kindly note Battery Life under Frequent Using: 12 Months Battery Life under Long Term Storing: 2 Years
??? Easy writing: 100% writing fluency, business office, daily records, memos, notes, messages, math calculations, drawings, etc. ??? Fingertip painting is not a dream Using the principle of pressure sensing. Use your fingertip to write on the board. ??? Flexible liquid crystal writing technology: No dust and pigment, green. Keep away from radiation, bid farewell to cell phones and tablets.
?Note: ?Do not use liquid or aerosol cleaners and use this product in humid conditions. Do not allow this product to get wet. ?Do not place flame sources, such as candles on top of this product. Do not place water filled objects such as vases on top of this product. ?Please use the pen which included in the product to write. Don't use other kinds of pens or other sharp objects. Please use the same type of battery when you replace a new one.