FlipEars Aiden is a dual-driver custom in ear monitor (CIEM). Despite it’s lower driver count, Aiden can outmatch higher driver count in ear monitors in the market today. This affordable CIEM is fit for audiophiles and musicians looking for aggressive and full sound with brilliant high frequency. Aiden is a fun-sounding CIEM. FlipEars AIDEN Technical Specification: Sensitivity: 124 dB Impedance: 27ohms @ 1kHz Frequency Response: 20Hz-20kHz Noise Isolation: -26dB Features: Custom-fit monitors based on customer’s ear impressions Transducer: Two advanced miniature balanced armature drivers Transducer configuration: 1-low/mid, 1-high Dual Bore Design 2-way passive crossover Hypoallergenic, biocompatible acrylic shells Warranty: 1-year Parts (inside the shell) and Labor Fit-Warranty: 1 month