The Logitec Cordless Adapter provides a good sound and easy to install, as long as you only have one audio source. If you want to connect multiple devices (such as an iPhone and an iPad), the trouble starts: The exchange between different devices requires each time a reconnection: press button on the adapter, Smartphone Settings - looking device - - Bluetooth connecting device. This fails, as long as the previous device is still connected; Therefore, first turn off Bluetooth on the first device, then all over again ... who wants to do that ... please. I order now an adapter that can store and also control more than one Bluetooth device, and the Logitech adapter goes into the ton.