AA battery: Not included Brand Name: Logitech DPI: 1000 Hand Orientation: Right Interface Type: USB Logitech Model: M185 Model Number: M185 Number of Buttons: 3 Number of Rollers: 1 Operation Mode: Opto-electronic Package: Yes Power Type: Battery Receiving Range: 10 meters SKU: Good0158 Style: 3D Time to market: Jun-11 Type: 2.4Ghz Wireless
