1、2.4GHz Wireless: This ergonomic mouse features 2.4GHz wireless transmission, operating distance up to 10 meters. 2、Vertical Design: This ergonomic wireless mouse adopts unique vertical design, providing easy and comfortable control experience. 3、Adjustable DPI: This ergonomic wireless mouse supports adjustable adjustable DPI, and the maximum DPI reaches 1600. 4、Plug and Play: This ergonomic wireless mouse with 6 keys and USB receiver is plug and play, providing more convenience. 5、Wide Compatibility: This ergonomic wireless mouse is suitable for Win 2000, for Win XP, for Win 2003, for Win 7, for OS X. Item Type: Ergonomic Mouse Material: Plastic Color: Black Material: Plastic Wireless Frequency: 2.4GHz Operating Distance: 0-10m Button: 6 Maximum DPI: 1600 USB: 2.0 Battery: 2 x AAA Battery (Battery Not Included) Operating System: For Win 2000, for Win XP, for Win 2003, for Win 7, for OS X. 1 x Ergonomic Mouse 1 x USB Receiver