First of all, worst bluetooth headset for calls ever! it's peaking up every surrounding noise exept my voice plus many times I hear everybody else like it is in the lowest volume possible!
On the media side, control buttons works only then they like, I have to press them multiple times and pray to shear chance, to them work making to reach the phone it self easier than rely on sbh 52 controls!
4 other people what I know personaly, have sbh52 on diferent devices (Galaxy S5, Z1, M8, iphone 5S) and me with (note 3) and we all have exactly the same problems!
WOSRST SPEND MONEY EVER!!!
