this month I bought a sunrround with 5.1 surround sound with bluetooth model Z607, I was very disappointed in the product, it has advantages and disadvantages for my taste, I do not deny that it has good sound but to be surround sound it is missing a lot, the subwoofer creates distortion although it is minimal , for my lack of power I have to use an equalizer to balance the music, but the biggest problem I had is with the technical part, especially with the clip-on speaker terminals (connectors), it is of poor quality (delicate) , I do not recommend using those connectors since they stop working, the current (transducer) does not pass through the speakers and makes them not sound, I had to insert them in the form of x for them to work, also the 3.5 mm jack cable is very delicate and easy to be damaged In the same way, the subwoofer is a very delicate material and does not resist too much power, it gives the impression that it is going to break and I did not like that it is an amplifier subwoofer, I did not like the antenna either, a simple and cable they should have done it based because there is a lot of interference in the use of radio, it is used to listen at home but for professional use I do not recommend it for what I mention, thanks I will continue looking for what I require.