Feature: 1. Has fashionable appearance, and the design of the mouse accords with ergonomics and feels comfortable. 2. This smart mini receiver can be quickly connected to the computer, and is easy to operate and easy to use. 3. Uses professional optical positioning technology, which makes the positioning of the wireless mouse more accurate. 4. Adopts unique intelligent circuit management design, which makes the mouse more power‑saving. 5. Made of high‑quality materials, and this mouse is sturdy, durable, not easily damaged, and has a long service life. Specification: Item Type: Wireless Mouse Material: ABS Connection with Computer: USB Wireless Transmission Frequency: 2.4Ghz Signal Transmission Distance: Approx. 10m / 393.7in Optical Resolution: 800-1200-1600DPI Number of Buttons: 4 Working Method: Optical Wheel Direction: Four-Way Wheel Battery Specification: 2 x AAA Battery (Without) . Package List: 1 x Wireless Mouse1 x USB Receiver Note: Ship without battery