The lightless engine does not hurt your eyes. With comfortable hand feeling. Wireless transmission: The longest transmission distance is about 20 meters. Small and lightweight, easy to carry. This ultra-lightweight mouse is perfect for notebook users. Compatible for Win2000/WinNT4.0/WinXP/Win.NET/Win7/8/10, for Mac OS X10.8 system. Ergonomic design, natural relaxation of hands, thin and light body. Slim and Compact The wireless mouse is designed to conform to your hand - and snaps flat to fit easily in your bag. Connects via Bluetooth. Ergonomic design, stylish look, comfortable hand feeling. Wireless Connection Wireless Bluetooth Foldable Mouse 2.4 Ghz 1600 DPI Optical Small USB Stick for Computer Laptop PC, just connect the computer USB interface can be.