Seenda Type C & USB Dual Mode Wireless Mouse One Mouse,Two Devices With only one Seenda usb & type c wireless mouse,you can switch easily to control two devices.Just click switch button,you can switch the connection of the mouse. (The red light is on indicates it's in 2.4G Wireless Mode,press the switch button to turn to blue light for Type C Mode) Compatible System: Windows XP,Windows 7/8/10 or later,Mac os X 10.10 or later. Perfectly for computer with USB port and Type C port like Macbook pro, MacBook 12", Google Chromebook,more devices with USB Type C port Note:1 AA battery is needed but not included.