Fangrui Product Details Fangrui Product Details Function 1: Portable Mouse For Travel And Meetings Function 2: Ergonomic Mouse Function 3: Used For Computers And Laptops : Mini Mouse Acceleration: 30g Movement Speed, Ips: 100 Sensor Model: Pixart 3311 (12000 Dpi|300 Ips|35g) Operation Mode: Photoelectric Type Power Supply Type: Rechargeable Number Of Buttons: 3 Number Of Rollers: 1 Hand Direction: Both Hands Packaging: Yes Style: 3d, Mini Resolution: 1200 Interface Type: Usb Type: 2.4ghz Sensor Model: Pixart 3311 Tracking Method: Optical Sensor Power Supply: Redirectable Lithium Battery Size: 8.2 X 2.6 X 2.2 Cm Material: Abs Colour: White Package Contents: 1 X Mouse 1 X Data Cable Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.