Combination of Bluetooth, card style mouse, ExpressCard interface, PPT wireless pointer; essential for large screen smart phone, tablet PC; 1. Bluetooth V2.0 EDR, PREFIX=ST1; 10 meters operating range; PPT remote control demonstrator, supports page down; 2. Portable, 5mm thickness, 14g weight, easy to carry with laptop; 3. Laser engine: 800dpi; 4. Long life battery, using time is about 8 hours, charging time is about 2 hours; 5. Auto power saving, auto sleep in 10 minutes without operation; Remote control for media player, changes your laptop into movie and video player; PCMCIA-Express interface, suitable new laptop