Sanwa Supply Bluetooth Ring Mouse (with Scroll) MA-BTRING5BK

This is a Bluetooth ring mouse that can be worn on your finger and operated with your thumb. It has a scroll function, which greatly improves operability. All operations can be performed with just one thumb. It supports the Bluetooth Ver. 5.0 standard, so it can be connected to computers with built-in Bluetooth without a receiver. Just wear it like a ring, so you can operate the keyboard and do other tasks while wearing the ring mouse.