Wireless mouse, for a better gaming and job experiment . Features: Wireless transmission, the longest sensing distance up to 10-15 meters. Portable and weight light, very convenient to carry and store. Power switch for saving power. With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing. Mini adapter Plug and play. Specifications: Mouse type: Wireless Optical Mouse Frequency: 2.4GHz Key: 6 Interface: USB Material: ABS Color: black / red (optional) Battery: 2 x AAA Battery (Not included) Item weight: 61g / 2.16oz Item size: 7 * 10.5 * 4cm / 2.75 * 4.13 * 1.57in ( L * W * H ) Package weight: 89g / 3.12oz Package size: 11 * 8.5 * 6.5cm / 4.33 * 3.34 * 2.55in ( L * W * H ) Package include: 1 * Wireless Mouse 1 * USB receiver