Function: Optional location: There is a hole behind the lamp, you can hang it on the wall or put it on the table. Wireless lighting, quick and easy to set up. Battery and USB charging operation: use 3 AA batteries (not included) or standard USB plugs : Material: plastic+LED Battery: 3 * AA Battery (not included) Size: 18*2*14cm (7*0.8*5.5inch) Note: Due to the light and screen difference, the color of the project may be slightly different from the picture. Do not use USB charging and battery charging methods at the same time, as this could cause the battery to heat up. Open the battery case only when the battery is in use. Not applicable to USB (USB cannot be disabled) Please note that only 5V1A adapters can be used for all neon signs. The package includes: 1x neon (excluding battery)