Feature:1. There are 4 buttons, including scroll wheel, page-down and page-back buttons for easy operation2. The product can realize 2.4GHz wireless transmission, up to 10 meters working distance3. 2.4GHz wireless mouse is lightweight and portable, very easy for you to carry and store4. There is a power switch to save power, environmentally friendly, useful and practical5. Wireless optical mouse come with USB interface, DPI up to 2000, bring a great using experienceSpecification:Item Type: Wireless mouseMaterial: ABSBattery: 2 x AAA batteries (not included)DPI: 2000Mouse Type: Wireless optical mouseInterface: USBWorking Distance: Approx. 10meter / 32.8ft.Package List:1 x Mouse1 x USB ReceiverNote:This mouse does not need to manually press the switch, it will automatically turn off, such as the phone lock screen, when not used for a period of time, it will automatically lock, click again to wake up.