... ,Touch screen3,Infared touch screen4,Host computer5,Inner speaker6,Interface : USB 2.0, RJ-457,Dual screen8,RF card card reader9 ... keyboard17,Bluetooth18,GPRS19,Coin acceptor20,Cash acceptor21,Barcode scanner 22,Web camera 23,OS : Windows XP24,Input voltage 110±10% 50Hz±1Hz25 ...