On-ear Comfort, Polk Active High Performance. Uncomfortable with ear buds or in-ear designs? Welcome to your solution for superior headphone performance, incredible comfort, and stay-put fit for active on-ear listening: the UltraFit 2000. SecureFit design keeps these unique on-ear headphones snug and comfortable during your workout (or your commute). Light noise isolation keeps you aware of your surroundings, while allowing you to disappear into your own audio world. On-ear controls give you on-the-fly convenience for your i-gadgets.