The LCD screen of light drawing board are made from durable, shatter-proof, non-toxic material. Very bright writing and no blue light, rediation or glare to stimulate eyes. The button battery(CR2025) normally can last about 12 months and can be replaced easily if run out. Working take only little energy, no waste and save money One key on the back of…
?? 2020 NEW DESIGN - We listen to your feedback! After long-term research and data, we update every detail and make a better ergonomic sleeping mask design to fit every head size. ?? PERFECT LIGHT BLOCKOUT ANYWHERE, ANYTIME - This sleep mask uses patented bending cartilage design, adjustable and durable, effectively blocking lights coming from the nose area. You can…