LED Busy Sign with Rechargeable Remote Control (Case Dimension: 12x30 cm) It is designed for interior use. The busy sign is turned on and off with the remote control. It works with RF. It is hung with a hanging device. If you have a special design, we can help. seen in the photo Small size (12x30cm) Medium Size (15x37cm) Large Size (16x40cm) Charging time is 5 hours. Usage time is 3 hours when fully charged. With the button on the side, the product can be operated even when it is not plugged in. We have options. Our products are our own production and are guaranteed against manufacturing defects for 2 years.