This device is a state-of-the-art which combines a presenter & a mouse. The unit automatically switches between the mouse & presentation mode when the mouse is placed on a table or busted. The 2.4 GHz wireless technology provides immediate response & a wireless range of 15 meters. The very small USB (Universal Serial Bus) receiver can be stored directly in the device. The on/off switch & the energy saving technology is used for a particularly long life of the battery.