FlipEars Aisha is a triple-driver custom in ear monitor. Having in it the best tweeter in the market today, Aisha has an open and inviting sound without sounding sibilant and fatiguing. Juicy is the word that best describe Aisha – it is full of energy and life. FlipEars AISHA Technical Specification: Sensitivity: 124dB @ 1mW Impedance: 56 ohms @ 1kHz Frequency Response: 20Hz-20kHz Noise Isolation: -26dB Features: Custom-fit monitors based on customer’s ear impressions Transducer: Three advanced miniature balanced armature drivers Transducer configuration: 1-low, 1-mid, 1-high Dual Bore Design 3-way passive crossover Hypoallergenic, biocompatible acrylic shells Warranty: 1-year Parts (inside the shell) and Labor Fit-Warranty: 1 month