latested display led writing board Advantages: Fashionable Design ---- stylish aluminum frame, black background, high-hardness and transparency ultra clear glass/Acrylic board (same quality with mobile phone display screen ); Easy-writing ---- super clean glass/acrylic board as writing surface, use a marker pen to design anything you want; More shining LED color ---- full RGB colors LED with 38 kinds of flash modes light your advertisement or message alive; Li battery usage ---- with two pcs 3.6V 1800Ma NOKIA Li batteries inside the board ensuring normal usage when the power out , for about 3 hours ,making it more convenient !! With Battery Box ---- alternatively use 3 pcs AA batteries when power out, it can work for long time Long lifespan ---- 80,000 100,000 hours; Portable design ---- it is portable, with 2pcs Li batteries full or 3 pcs AA batteries, you can place it wherever you want; Advanced switch ---- with on/off button ;38 keys for each color Energy-saving--- Low power consumption can save energy and money Products detail: Frame materials ----high quality Aluminum alloy frame. Writing area ---- anti-scratch, high-hardness and transparency ultra clear Glass / Acrylic(same quality with mobile phone display screen ) Light Source ---- LED Voltage ---Input 100V-240V, 50/60HZ Output: DC 5V, 1A max Lifespan ---- 80,000 100,000 hours Size--- size and shape can be OEMLight guide--- Inside of the board, there’s two RGB led strips along the long sides of writing board which controlled by circuit board.Spare part---markers, adaptor, duster, chain, hook, clothCertificates---CE & RoHSinstructions:1. Uncovering the plastic film and cleaning the screen with the tissue which enclosed in box before using it.2. Keep shaking the pen for seconds before using it, and then press the tip of the pen until the liquid flow out. Keep the right way when you use the pen, turn back the cap of the pen after you finish your work on the screen.3. Writing and painting everything on it as you like. Keep thick trail when you painting on the screen, that will make your work light and eye-catching4. After you finish your paint, turn on the power, the paint will be shining5. Pressing the button which on the side of the board, you can choose different color style to meet your favor or the environment6. If you want to change the painting, first clean the original one with a piece of wet cloth, then wipe the surface of the screen with the tissue or dry clean cloth, and then you can repaint.