-Made of hardened acrylic material, ultra-thin design, wear-resisting.-5V safe power design and low power consumption.-High quality output power adapter ensures stable voltage.-USB cable can connect with power bank or computer as power supply.-Light weight, easy to carry and more convenient to use.-Uniform, gentle lighting is healthy and harmless to eyes. Specifications:Material: AcrylicUSB Input Voltage: DC 5VAdapter Input Voltage: 100V~240VAdapter Type: US plugWhole Size: 33.5 x 23.3cm / 13.18 x 9.17"Working Area Size: 31.1 x 23.8cm / 12.24 x 9.37"Thickness: 0.47cm / 0.18"Weight: 423g(approx.)Package Includes:1 x LED Drawing Board1 x USBNote:1. Handle with care. Do not use sharp metal objects please to prevent scratch on work surface.2. Use on a security and stable platform. After use, please stored in a safe and dry place.3. If the light is flicking after powered on, it means the power input doesn't match with this product. You may replace the charger, charging treasure or computer interface.