Sanwa Supply Wireless Ring Mouse 3 MA-WRING3BK

This is a wireless ring mouse that you wear on your finger and can operate with your thumb. All operations can be performed with just one thumb. Since it simply slips on like a ring, you can use the keyboard and perform other tasks while wearing the ring mouse. Since it's worn on your finger, you can easily operate your computer while lying on the sofa or bed. It features a PowerPoint mode that supports PowerPoint's blackout and page turning functions. *Some functions may not be available in PowerPoint for Mac.