The item is a ultra-thin and cool 2.4GHz mouse, which works with the range up to 10 meters, can avoid of trouble caused by the mouse and let you play the games or do works expediently. It adopts advanced optical technology and sensor to provide smoother and more precise control experience, and supports only to connect the USB receiver to your computer’s USB port. The arc mouse fits your palm perfectly, and folds on a strong metal hinge to 60% of its fully expanded size. With easy and comfortable to use, it is really a wonderful folding mouse for choice. Features - ColorBlue - Material: durable hard plastic and metal. - and Ultra-thin 2.4GHz Folding Foldable Arc Optical Mouse. - , easy to use, no extra driver required: Connect the USB receiver to your computer’s USB port, and put the battery into the mouse. In a flash, the mouse will be connected with the computer automatically without tedious steps. - Adopts advanced optical technology and sensor, to make it scroll easily in any direction, and provide smoother and more precise control experience. - Ergonomic arc mouse design fits your palm perfectly, for easy and comfortable to grip and operate. - Mouse folds on a strong metal hinge to 60% of its fully expanded size. - Folding motion turns mouse on/off. - USB nano receiver in the mouse button, to save space. - 2.4GHz transmission, with the operating distance up to 10 meters / feet. - Compatible with Windows 2000/98 /XP/Vista/Wins 7 and . - Built-in energy- . - Powered by 2 * AAA batteries (not included). - Ultra-thin and light weight design, and easy to carry. Package list: 1 * Ultra-thin 2.4GHz Folding Foldable Arc Optical Mouse for PC /Laptop / (Blue) 1 * Mini USB Receiver