Bluetooth Laser Mouse BTM-10 gives you the ultimate in mobile freedom. It quickly and easily connects to your existing Bluetooth-enabled laptop or PC without wires or an added receiver. Built-in rechargeable Li-ion battery, don't need to buy any battery, and when you recharge it, you can still use it. With our advanced optical technology, you navigate accurately and easily virtually anywhere. Even up to sixty-five feet away so you can remotely control your presentations. Features: Bluetooth 2.0 interface, 1600 DPI optical technology. With DPI switch so you can set the dpi at 800, 1200 or 1600 for different work. Hassle-free connection easily works with any Bluetooth-enabled PC or Laptop. 0 ~ 10 meters working range. Eliminates wires and an added receiver for the ultimate in portable freedom. Ergonomic design helps you work longer without discomfort. Compact size is easy to carry. On-off switch helps you conserve battery power for when you really need it. Recharge is by USB Cable, and you can still use it when you recharge. Install and operates easily. Specifications: Radio Class: Bluetooth v2.0 + EDR, Class 2 Frequency: 2.4 ~ 2.4835 GHz Bluetooth Profile Supported: Bluetooth HID Data Rate: > 700 Kbps Tracking Method: Optical (LED) Resolution: 800/1200/1600 dpi Power: 2 ~ 5 V DC Built-in rechargeable Li-ion battery Dimensions: 96 x 56 x 27 mm Weight: 60 g (0.13 pounds) with batteries Systems Supported: Windows 98, Me, 2000, XP, Vista, andMac OS 10.2.8 or later Certificates: CE, FCC and RoHS Package Contents: * BTM-10 x 1 pc * Retail Box * User's Manual * USB Cable