GBSELL Slim 2.4 GHz Optical Wireless Mouse Mice with USB Receiver For Laptop PC Macbook Size:115 x 60 x 20mm; Elegant, Ultra Slim,Comfortable Grip Mini Receiver can be contained and easy to carry; Nano Mini Receiver hidden in the Mouse Bottom Intelligent connectivity, No Need to Code, Plug & Play Built-in Energy Saving system. Effective: 2.4GHz wireless transmission up to10 metres operating distance