FiiO FH11 IEMs not only sound great, but they also look great. FiiO FH11 are made of zinc alloy. They look nice and have a good design that contributes to wearing comfort.
FiiO FH11 specifications:
Impedance: 24Ω@1kHz.
Sensitivity: 111dB/Vrms.
Frequency response: 20Hz-20kHz.
Connector type: 0.78 mm 2-pin connectors.
Terminal plug: 3.5 mm.