Key Attributes DPI: 1000 / 1200 / 1600 Interface Type: USB Type: 2.4 GHz Wireless Tracking Method: Optical Application: Desktop, Laptop Number of Buttons: 4 Hand Orientation: Right Number of Rollers: 1 Power Type: Rechargeable Style: Mini, Waterproof Ergonomics: Yes Private Mold: Yes Programmable: No Backlit: No Product Status: Stock Place of Origin: Guangdong, China Model Number: X2 Brand: T‑WOLF