The unit is very powerful and a solid build. Battery life is great and the sound is amazing. However the delivered wireless mic is unreliable. Cuts in and out and has disconnected at times. This is an absolute "NO GO"!!This was very embarrassing whilst performing at a wedding, especially for the bride when dancing with her father. The mic just disconnected (not only once but many times even when I changed the channel. This is a BIG problem which will HAVE to be fixed. This is the reason why i cannot recommend this unit to a friend, especially when performing live. What a shame! This could have been a great mobile system and destroyed by simple to fix failures.