The Ultimate Ears Super.fi 4 is a relatively new universal earphone that has replaced the Super.fi 3 line. Featuring a single driver armature design, the Super.fi 4 features the same top-notch isolation as the rest of the UE line-up. At $129.99, these are a great option for replacing stock earbuds for travel and on-the-go listening, with a decent amount of background noise isolation, and small, bud-like body which gives the Super.fi 4 a much lower and more attractive profile than UE's more expensive options.
- Frequency Response: 20-15000 Hz
- Impedance: 29 ohms
- Isolation: -26dB
- Plug type: 1/8" (mini)
- Driver technology: 1-driver armature
- Warranty: 2 years
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