DZT1968 2.4Ghz Mini Portable Wireless Optical Gaming Mouse For PC Laptop Color:Black Mini adapter Plug and play Mouse type: Wireless Optical Mouse,Power Supply: 2 x AAA Battery(Not included) With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing Package include: 1 x 2.4GHz Wireless Portable Optical Mouse+1 x USB receiver