I don´t like it. Behringer has some very good products for their price, but this is not one of them. Is really anoying. It doesn´t work on stereo, just on mono, and has very high differences in level between one channel and the next one. Probably has a loosen contact inside, but anyway, as I have other methods to do its job, i prefer just forget about it and just not recommend it. Return it back is closely as expensive as it is, so just direct to the trash can. Good luck.