set up is easy. Sound quality is very good. good high freq. and pretty heavy base. Therefore, I can use my smartphone as a MP3 player now. it also can play midi music files which most MP3 players can not. it is also worked very well as a cell phone headset. Only minor problem is that it is little too heavy. One good feature is that many control functions, such as skip next, previous, play and pause are built on the phone.