The KBSOUND STAR and the PREMIUM BT are two sound systems comprising a Master Module incorporating a FM/DAB Tuner and Bluetooth technology together with two loudspeakers. The App controls via BLE (Bluetooth Low Energy) the Master Module and allows the user to choose between the FM/DAB Tuner and stream music via Bluetooth (A2DP). It turns ON/OFF the Master Module, increases and decreases the volume, search the FM/DAB stations, save your favorites and the ideal Mode. The Bluetooth technology gives the user the possibility to stream music from any Bluetooth device such as smartphones, tablets, computers, Alexa devices, etc. Enjoy the FM/DAB radio, the music stored in your Bluetooth device or stream the world of Internet music through the KBSOUND STAR or PREMIUM BT sound systems.