See audio – Bravery

Specifications
Driver configuration 4BA (3Knowles 1Sonion)
impedance 18 Ohms
sound pressure sensitivity 110±1db
Reproduction frequency band 20Hz-20000Hz
body weight No manufacturer information
Cable specification 3.5mm Jack with 0.78 2Pin 6N/OCC (manufactured by HAKUGEI)
accessories Azla Xelastec S/MS/ML ear tips x 1 set
Foam type ear tips 3 sizes x 1 set
Carrying case