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Sport 400

Sx-400 & S-400
Discontinuing S-Series

Product Description

Meet your perfect workout partner.
No matter the workout, these tips are designed to stay put, so you have earphones that move with you.

*PLEASE NOTE: S-Series without SweatGuard™ is discontinued

No-Slip Fit

Earphones falling out? Heat activated memory foam expands to unique ear canal shape, creating a custom, secure fit for amazing in-ear retention. Music while exercising is all yours.

Noise Reduction

Seals ear canal from environmental distractions. Enjoy music without raising the volume to compensate for external noise.

Enhanced Audio Performance

Maximize your listening experience. Hear music how it’s supposed to be heard, with all its highs and lows. Comply Foam seals the ear canal and funnels in pure sound.


Acoustically transparent filter ensures sweaty ears are no problem. This protects your earphone from moisture damage.  




Colors: Black
Foam Height: Small, Medium, and Large: 9.91 mm ± 0.6 mm (0.390” ± 0.025”)
Diameter at proximal end (end attaching to device):
Small: 11.56 mm ± 0.75 mm (0.455” ± 0.030”)
Medium: 12.83 mm ± 0.75 mm (0.505” ± 0.030”)
Large: 14.10 mm ± 0.75 mm (0.555” ± 0.030”)
Materials: Polyurethane foam, thermoplastic elastomer (all RoHS compliant)
Inside diameter of core: Depends on earphone design. 

Product Reviews

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  1. Super comfy and snug fit

    Posted by Scott on 26th Jul 2017

    Bought a set of in-ear headphones (AudioFly AF33) and the standard silicon/rubber molds always fell out. The Sport 400 fit perfectly on my AudioFlys and even better in my ears. Cancels out a decent amount of noise and are super comfortable. Don't have any issues with headphones falling out now. Would definitely recommend!

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