Features
UltraFit Series Sports Headphone: Polk Audio designed their new
UltraFit Series Sport Headphones to enhance your headphone listening experience
while enduring your most demanding workouts, comfortably. The Polk Audio
UltraFit Series Sport Headphones are engineered for comfort, performance, and
durability. You'll appreciate how they fit and stay put even through the
roughest workouts. You'll also be impressed and delighted by the dynamic sound
quality of the UltraFit Sport Headphones.
Dynamic Balance: Co-developed with the Johns Hopkins Center for
Non-Destructive testing, Dynamic Balance is a design tool that enables Polk
Audio engineers to pinpoint the elements that negatively impact driver
performance. These same engineers then carefully control materials, interfaces,
and geometries; resulting in a headphone with great sound.
Dynamic Balance Polymer Drivers: UltraFit Sport Headphones employ
dynamic drivers much like those in a Polk Audio full size speaker; they're just
a lot smaller (14.2mm). To meet Polk's predetermined performance parameters, their
engineers took the same care designing these drivers as Polk Audio large speaker
drivers; even adding a discrete crossover filter to each driver to naturalize
the high frequencies.
Ported Enclosures: UltraFit Sports Headphones are ported, since there
is the port (ear piece) you put in your ear. There are also very small channels
in the back of the driver enclosure, beneath the Polk logo. These are crucial to
tuning the driver's frequency response peaks. And that means a better sounding
pair of headphones.
Moisture Shield: The UltraFit 500 headphones employ Moisture Shield to
protect the headphones during your workout. Moisture Shield consists of a thin
scrim on UltraFit 500 driver screen. This filter material resists moisture that
could get to the driver; so the headphones can keep performing through strenuous
activity. Moisture Shield also provides an acoustic barrier to help smooth
frequency response.
SecureFit Support: SecureFit Support is a flexible ear hook that wraps
around your ear, so the earpiece stays in place. With SecureFit Support, you'll
experience a snug yet comfortable fit. Now, you can put your headphones on and
forget about them during your workout.
3 Pairs of StayFit Eartips: Properly fitted eartips help you to eliminate
extraneous noise, experience greater bass response, and enjoy better tonal
balance. Eartips that fit correctly also feel more comfortable. No two person's
ears are exactly the same, so Polk includes 3 different sizes (S/M/L) of StayFit
silicone eartips
to ensure a secure and comfortable fit for optimum audio performance.
Ultra Flexible Tangle-Free Planar Audio Cable: Standard round
headphone cables always coil up and twist; and are a constant source of
annoyance, because they get in the way of your workout. Eventually repetitive
twisting means the cable will break or pull out at the end. The UltraFit's
planar design (with oxygen-free wire for better conductivity) completely
eliminates coiling, so the headphone cables won't tangle up during a workout, or
when stored away. The planar design also eliminates micro-phonics, the tendency
of an electronic device to turn a mechanical vibration into "noise," which you
would hear, in this case, through the headphones.
StrainGuard: Sports headphones get a lot of abuse. UltraFit Sports
Headphones have been designed with this in mind. StrainGuard is a protective
system that addresses the areas where sports headphones fail most often. A
Kevlar core that houses the speaker wire provides extra tensile strength to
prevent the wire from being pulled apart at common failure points. The other
points of common failure in sports headphones are at transitional points between
cable lengths and at connection points. In the UltraFit Series, all transitional
connections are computer designed to strengthen the points where they fail most.
3 Cable Lengths: UltraFit Series headphones come with three cable length
options, so you can wear your music device the way that works best for you. The
attached 14" headphone cable lets you clip your portable music player to your
shirt collar (with included shirt-clip), an included 41" headphone extension cable enables you to wear
your music player on your waist or pants pocket, while the supplied 14"
headphone extension cable lets you wear your iPod nano, iPod shuffle, or other
MP3 players on a t-shirt sleeve.
3.5mm Connector: All UltraFit Sports Headphones employ a gold-plated 3.5mm connector that
has been designed to fit through the opening on most portable audio player cases.
Moisture Resistant Soft Case: The UltraFit Sports Headphones include a
moisture resistant soft case for storage, transport, and protection of the
headphones and its included accessories (extension cables, ear-tips, shirt
clip).
