Have the adapter for my son ordered, as his Yamaha Drums is not compatible with the normal headphone connections. Two days later the adapter was there. My son may be drumming now listen directly through the headphones and my wife and I do not have to yell at us if we want to talk ... In retrospect, I have to say from time to time I miss now the drumming, but naja..mein Sohnemann is happy, what more could you (n) more! Strong buy recommendation