1.wireless for PC with dual vibration,Use 2.4GHZ radio wave frequency
2.with 3 additional battary:AAA
3.Automatically check and measure batttery power supply
4.Can be remote control within 10 meters
5.with two motors,support all vibration games
6.Automatically in energy saving mode when there is no action in 5 minutes
7.compatible with usb1.0/1.1/2.0
8.compatible with Windows 98/2000/XP/2003/Vista/WIN 7