FlipEars Genesis is a single-driver custom in ear monitors. Single doesn’t mean boring and dull. Genesis can surprise you with its dynamics, detail, and body. It’s an amazing entry-level CIEM, it’s incomparable to other single driver IEMs. FlipEars Genesis Technical Specification: Sensitivity: 118dB Impedance 50 ohms @ 1kHz Frequency Response: 20Hz-18kHz Noise Isolation: -26dB Features: Custom-fit monitors based on customer’s ear impressions Transducer: Single advanced balanced armature driver Transducer configuration: Full range Single Bore Design Hypoallergenic, biocompatible acrylic shells Warranty: 1-year Parts (inside the shell) and Labor Fit-Warranty: 1 month