Turn on the mouse power switch and then indicator light is on. Adopted 2.4GHz wireless technology to ensure fast and stable transmission, and longer working distance,.and Latest energy saving technology and power switch, you can use your mouse without power interruption for longer time. Open the such as tablet PC, mobile phone, search the available device " mouse". Laptop, desktop and so on, find devices and printers in the control panel. Perfect for Travelling carry which means it can be easily put into your laptop bag and ultra-space saving. The finger ring mouse is mini, light weight and flexible. With it, you can use it wherever you want.