Ultimate Ears MetroFi 200 Noise Isolating Earphones (Discontinued by Manufacturer) In-ear noise isolating earphones with full spectrum sound from a single high performance dynamic speaker Small form factor and lightweight construction provide excellent comfort and fit Ergonomic and stylish design Three sizes of single flange silicone ear tips and one set of dual flange silicone ear tips included for a near custom fit Zippo style pocket ready hard travel case