Item Type: LCD Writing Tablet Material: LCD+ABS plastic+soft rubber Battery Type: Lithium manganese button cell Battery Model: CR2016 Battery Voltage: 3V Nominal battery capacity 75mAh Steps for Usage: 1. Take out the writing pen upwards and use the writing pen or fingertip to write in the writing area. 2. One Key Clear: In writing mode, press the clear key to clear all written content. 3. Lock Key: In the "locked" state, close all clear functions to prevent accidental deletion. "Unlock" returns to the normal state. 4. Battery Box: Loosen the screw when replacing the battery and pull down the battery box to replace the battery. Size: Approx. 16cm / 6.3in 12.6cm / 5in 11.5cm / 4.5in 27cm / 10.6in 18cm / 7.1in Package List 1 x LCD Writing Board 1 x Pen 1 x User Manual 1Owl shape Christmas cartoon designed, squeeze the soft rubber of the crown and wing, to place the innocent childish innocence. 2Touching to write function, you can write real and delicate handwriting, and use a color pen to perfectly outline the colorful world in the child's heart 3The onekey clear designed fits children's habit of smearing freely, and there is a key to prevent accidental deletion. 4Powered by button battery, with smart chip to reduce power consumption, each battery provides about 15000 erasing times, long standby time. 5Using the smart drawing board to draw numbers, letters, Chinese characters, shapes, patterns, etc. can exercise children's imagination and thinking skills.