Details Mini Bluetooth-compatible Wireless Finger Ring Mouse Ergonomic Handheld Optical Travel Mouse (bluetooth-compatible Model) Feature - 1. Optical Handheld Mouse - A mini Bluetooth-compatible wireless ring mouse is a great help for users who always take their laptop out for business. You can type while using the mouse. Tip - It may not be so convenient for users who are used to typing with 2 hands.2. Wide Compatibility - The Bluetooth-compatible wireless finger mouse is suitable for Android