Item Type: LCD Writing Tablet Material: LCD + ABS plastic Battery Type: Lithium manganese button battery Battery Model: CR2032 Battery Voltage: 3V Nominal Battery Capacity: 240mAh Size: Approx. 12.2 x 17.5cm / 4.8 x 6.9in, 19 x 29.5cm / 7.5 x 11.6in Package List 1 x Handwriting Board 1 x Handwriting Pen 1 x User Manual 1.Whenusedforthefirsttime,sometracesmayappearonthescreenduetothepressureduringtransportationorstorage.Thisisnormalandcanbeerasedbysimplypressingtheerasebutton.2.Iftheproductisnotusedforalongtime,thebatterywillbeinasleepstate.Repeatedlypressthe"Erase"buttonabout5times,youcanuseitnormally.3.Whenpressingtheerasebuttontoclearthewrittencontent,thisproductwilldisplayastartupscreen.Itisnormalandwillnotcauseanyimpactordamagetotheeyes.Pleaserestassured.4.Avoidusingtheproductunderthefollowingconditions:rapidtemperaturechanges,ambienttemperatureexceeding40C,lowtemperaturelowerthan0C,longtermdirectsunlight.5.Theelectronicwritingboardusespressuresensitivewriting,andthewritingpowershouldbelessthan20grams.ExcessiveforcecancauseirreversibledamagetotheLCDscreen.6.Pleaseusethespecialwritingpenattachedtothisproductforwritinganddrawing.ofsharpnessmaterialscannotbeusedforwriting.7.Pleaseal 1Paper& 8209;like flexible LCD display screen is true and does not hurt the eyes, and the dull screen restores the paper& 8209;like touch to write just like on the paper 2One& 8209;click erasing can be used repeatedly, no eraser is needed to erase immediately with a light push, handwriting replaces pencils to bring no carbon paper life 3The product is equipped with a lock function key for preventing accidental deletion after being turned on, allowing children to devote themselves to creation 4Highlight handwriting painting at will, every stroke is wonderful, high contrast handwriting is clearer, nails can create no need to use a pen 5Button battery has low energy consumption and large capacity, the battery life up to one year