GS-X3 series ScanBuddy USB barcode accessory are new revolutionary, small size USB barcode accessory for Android smartphone and tablet with OTG function. It can also connect with Windows 8.1 X86 tablet together .You just need to plug the Micro-USB plug into smartphone, your smartphone and tablet will become an intelligent barcode data collection terminal. You do not need to pair with smartphone (such as Bluetooth) and install any driver, Android system will find scanner automatically.