- . When it says USB Ready, nothing happens! However, that problem is now being overcome... Often called USB OTG for short, this specification which is now being supported by some Android devices running version 4.0 or later, can enable your smart phone or tablet to act as a USB host. Posted by Anonymous on Thu, 04/16/2015 - 02:07. iRig UA is one of the first digital effects processor and interface to allow universal near-zero latency processing with AmpliTube on all Android devices compatible with Android 4.0 or higher and that support host mode/USB OTG. Posted by greg on Wed, 12/31/2014 - 21:03. The iRig UA is the better choice for other Android phones and tablets. USB OTG Compatible Android Device That can turn any supported Android devices as guitar and bass amp simulator. Universal guitar effects processor and interface for Android, PC and Mac. Everything is fine. 3. iRig HD-A is the first digital guitar interface for Android that allows plug-and-play connectivity and the highest possible sound quality. Greg. 2. With iRig UA, the most popular mobile digital guitar interface and virtual guitar multi-effects processor app have finally landed on Android. Does this app work with Mototola Moto X? Does it work on Samsung Galaxy Exhibit 1? As a USB host your Android device will only supply a limited amount of power - this means you will need an audio interface which either has it's own power supply, or one which draws very little current.