Beats Fit Pro is equipped with comfortable, secure-fit wingtips that flex to fit your ear. The universal wingtip design was put to the ultimate test by athletes of all kinds so you can trust these earbuds will stay put through work days and workouts. Complete with pressure relieving vents, you can comfortably wear these earbuds all day long.Three soft silicone eartip options make it easy to find the right size. The Fit Test1 setup for both Apple and Android helps ensure proper fit for a customized acoustic seal and optimal performance.