AI-generated product photo — not official manufacturer imagery.
HeadphonesIn-Ear Headphones
Estimated price (community-sourced)
$20
About the RE400
The HiFiMAN RE400 Waterline is a compact in-ear monitor with a single 8.5mm titanium-coated dynamic driver, neodymium magnets, and OFC cabling. It is designed for a balanced, neutral-leaning sound with clear mids, refined bass, and comfortable long-wear fit, and it uses a fixed 3.5mm cable.
Specifications
Key Specifications
Sensitivity: 102 dB
Impedance: 32Ω
Frequency: 15-22000 Hz
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