Hrph Updated Version Bluetooth 3.0 Wireless Mouse 800/1200/1600 DPI + Bluetooth EDR Dongle Wireless Adapter USB 2.0 for PC Its lightweight, slim design makes it perfectly for travel. The Updated version make easy Installation--One-click connection. Reduce the lack of a cable or USB receiver to lose removes the risk of leaving your mouse nonfunctional. If you're sick of losing the USB receiver to your traditional wireless mouse, it is time for you to go completely wireless with a Bluetooth 3.0 optical mouse. This mouse is fully compatible with all Bluetooth 3.0 or earlier computers, laptops, and other electronic devices.