A3 Dimmable USB Charging Drawing BoardA3 Portable USB Ultra-Thin Light Box Power Cord Adjustable Brightness Steel Mesh Board Drawing Board Line Drawing Animation Adjustable Strap (Infinitely Adjustable)The light box is eye-protected, portable, durable and easy to use. Stepless brightness adjustable design increases the accuracy of your drawing. You can adjust the brightness by simply pressing the button until you get the brightness (from Bright to Dark). for stenciling, 2D animation, calligraphy, embossing, scrapbooking, transfer, sketching, drawing, sewing projects, stained glass, quilting, applique, X-ray viewing, etc.+ productMULTIPLE USE: For stenciling, 2D animation, calligraphy, embossing, scrapbooking, transferring, sketching, drawing, sewing projects, stained glass, quilting, appliqu, X-ray viewing, etc.EASY POWER SUPPLY: By connecting to the USB port of computers, USB adapters or even power banks.STEPLESSLY ADJUSTABLE: Perfect for people who want to adjust the light as they like. Turn on/off and control the brightness easily with a light touch.EYESIGHT PROTECTED DESIGN: With advanced eyesight protection technology designed to eliminate eye fatigue. Brighter, more moderate. Flicker-free, no glare, no shadow.Features-Material: Plastic.Size: 47 x 37 x 3.5 cm (L x W x H).-Working voltage: DC5VPower: 5.4W