... in function •2.4G Wireless Keyboard & Mouse (Left button, Right button and Middle button) & Trackball & 3mW Laser Pointer. •Wireless intelligent connection ... rechargeable lithium battery, fully charged stand by 3 months.1.3 Button LED backlight design, dark environment can also ... Windows98, 2K, XP, VISTA and Windows7 Android 2.3, MAC.OFNSupport optical finger navigationRF & BT working distance ...