Beteran FIDUE A31S Dual Dynamic Drivers High-End Dynamic+Armature IEMS Hi-End In Ear HIFI Monitors DJ Studio Stereo Music MP3/4 Player Mobile Phone Earphones Headphones (A31S-white) Fidue A31s is soft pleasant and melodious , Contains a wealth of musical detail and interpretation of singer 's touching emotional. Call Answering Button compatible for most mobile phones The remote lets you play, pause and skip to the next or previous track. Calls from the phone can be answered with the touch of the button Unique, tiny & long-tube design, with high quality double flange silicone eartips Suitable for portable media players with standard 3.5mm connection Very balanced sound quality with good bass, smooth mids and well defined highs and the experience is pure high fidelity