Mini wireless barcode scanner (barcode reader) scanbuddy gs x3, the smallest usb barcode scanning accessory, are new revolutionary micro usb barcode scanning accessory for android smartphone and tablet, which only require these android devices with otg function. It can also be used for windows 8.1 x86 tablet together. You just need to plug the micro-usb plug into smartphone or tablet, your smartphone and tablet will become an intelligent barcode data collection terminal. You do not need to pair with smartphone or tablet (such as bluetooth trouble pair). Android system will find scanner automatically after you only install generalscan free driver or sdk.