This is an iOS App for DOSS Cloud Book wireless music systems sold in Amazon.With this App,you can connect your iOS phone or tablet to your Home WiFi network,link the speaker to your network and play music.You can search your favorite songs,artists,albums,stations,set your favorites,and personalized presets as you like. And listen to music and radios in Pandora,iHeartradio,TuneIn,Spotify with the app as well. The App supports most of media play Apps with Airplay, DLNA, and Qplay protocols.