I bought this Splitter or Y adapter, because I have watched over only a player or we sometimes even a film about the notebook very much hear with my girlfriend on the train MP3s. As is known, these devices have only a headphone output because there comes a natural adapter handy. The build quality is solid! Only the only problem as it occurred with the other commentators: Headphones Apple does not fit. Specifically: The headphones of my iPod Shuffles not fit. This is a 3.5 mm jack plug, which should fit so. The problem lies not on the adapter, but the Apple connector. All other 3.5 mm jack plug, which stood by me for testing purposes, fit perfectly! The minijack connector on the iPod is just a touch too thick! We might get him safely into it, but not beyond. With some force I get into the plug half, but out I got the Apple connector then only with pliers. Since I have but now bought two Groove Buds Premium In-Ear Headphones, this problem solved for me. But those who want to use iPod 3.5mm jack plug headphones Apple should be careful, it could have the same problem as me and the other commentators occur.