The Speaker (OMNI20) have really amazing sound. Unfortunately, not all features unlocked from Deezer in the app. The app has on a HTC One X + works relatively well, with only minor deficiencies. On a Huawei Ascend P7 could not be streamed. Demand for Harman Kardon revealed that there are still some bugs in the app, which can be resolved in the next few days CAN. I have given back the speaker again and will in 3-4 months to buy and test again. In principle for me the best choice before Sonos and Bose. Unfortunately, currently for me currently not suitable if the app does not work on any smartphone / tablet and for this price I want to make no compromises.