2.4GHz Ring-Style 800DPI Wireless Optical Finger Mouse - Black
Color: Black - Plastic case material - Resolution: 800DPI - Frequency: 2.4GHz - Operating range: 10 meters - Built-in 150mAh rechargeable lithium battery - Charging time: 2~3 hours - Working time: 6 hours - Perfect for using in constrained areas (airplanes trains and buses) - Scroll wheel feature available as well just like regular mouse - Comes with USB receiver & USB charging cable (76cm length)