1、Wireless transmission, the longest sensing distance up to 10-15 meters 2、Portable and weight light, very convenient to carry and store 3、Power switch for saving power. Mini adapter Plug and play 4、With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing 5、Resolution: 1000DPI, 1200DPI,1600DPI, 2400DPI (adjustable) Features: 1. Wireless transmission, the longest sensing distance up to 10-15 meters. 2. Portable and weight light, very convenient to carry and store. 3. Power switch for saving power. 4. With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing. 5. Resolution: 1000DPI, 1200DPI,1600DPI, 2400DPI (adjustable) Specifications: Mouse type: Wireless Optical Mouse Frequency: 2.4GHz Key: 6 Interface: USB Material: ABS Battery: 2 x AAA Battery (Not included) Package Weight: 66g Size: 11.5 x 6.3 x 3.5cm / 4.53 x 2.48 x 1.38inch Package Included: 1 x Optical Mouse (Battery is not included) 1 x USB receiver