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  3. K1 vs Junior

EarFun K1 vs OTL Junior

What K1 does better (1) and where Junior wins (0) — every spec side by side.

EarFun K1
EarFun · 2025K1
1 advantage≈ $15
vs
OTL Junior
OTL · 2020Junior
0 advantages≈ $12
3.8Noise control & calls3.8

Why is K1 better than Junior?

  1. Driver size40 mm vs 30 mm+33%

Why is Junior better than K1?

Junior has no measurable advantages in this pair.

Specifications

Side by side

EarFun K1EarFun K1≈ $15
OTL JuniorOTL Junior≈ $12
Sound
FitOver-earOn-ear
Ear cup designClosed-backClosed-back
Driver typeDynamicDynamic
Driver size40 mm30 mm
Number of drivers11
Lowest frequency—20 Hz
Highest frequency—20,000 Hz
Impedance32 Ω32 Ω
Sensitivity94 dB85 dB
Noise control
Active noise cancellingNoNo
Connectivity
WirelessNoNo
3.5 mm jack / AUXYesYes
Features
Hands-free callsYes—
To compare: 0up to 4 models
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