That is the kind of small box that gives life to a facility. Very friendly, simply synchronize the bluetooth reception with the case then go to the library or a radio from a smartphone or tablet. Any family member or a guest can connect and deliver his music. Personally, I plugged into a sound bar Yamaha YSP-1000, knowing that it is also possible on my stereo.
Only regret, the lack of optical output which provides a summary in my opinion no losses compared to a basic coaxial. Fortunately the latter is provided. This box provides for a modest price and a real service puts your system to levels of new contingencies musicales.De more power consumption is less than 1 Watt.
