Support mobile devices : Galaxy S2, Galaxy S3, Galaxy S4, Galaxy Note, Galaxy Player (Unsupported device : All Tab types device, Galaxy Tab, Galaxy Note 10.1)If you already use 2.25 version app, firstly please delete(uninstall) it and then install new versionYou can use it with Samsung audio products which is "Wireless Audio with Dock" such as DA-E550, DA-E570, DA-E650, DA-E660, DA-E670, DA-E680, DA-E750, DA-E760 and so onSupport android OS : Gingerbread, Honeycomb and Icecream Sandwich.