Battery Powered & USB-C Powered The A3 light box has a built-in 4000mAh rechargeable lithium battery, which can work wirelessly for 4 hours after being fully charged, and each full charge takes 3.5 hours. Conveniently use it anywhere at home or on the go. Equipped with an upgraded version of the fast charging Type C cable, charging is fast and efficient. Applicable to both battery mode and charging mode. Side Physical Button Design & Magnetic Design The wireless A3 light board equipped with physical buttons on the side, so that you will no longer accidentally turn on/off the light pad when creating, improving your creative experience. In addition, the 4 magnets can be adsorbed around the light pad, which can firmly fix diamond painting canvas/paper/X-ray or other things on the surface of the light box, bringing great convenience to your creation.