This keyboard combines the convenience of radio frequency wireless technology and the TOUCHPAD with 2 mouse buttons and programmable smart touchpad. As no cables connected to keyboard, you can put it away when you finish using it. You can use the keyboard on table or lap.
2.4 GHz radio frequency with USB receiver
Working Range: 10 meters effective working range
2xAA batteries included, approx. 3 months battery life (please only use alkali batteries)
Compatible with Windows 98 SE/ME/2000/XP/Vista
10 million key switch life
2 mouse buttons (right and left)
TOUCH PAD:62mm X 46mm, 2 Mechanical Buttons