KZ Castor HiFi Earbuds Headphones,KZ Stereo Dual Dynamic Driver in-Ear Earphones 0.75mm Cable, Tunable in-Ear Monitor Headset (Silver (Standard), with Microphone)

Product information< br > Product name: KZ Castor Tunable in ear Headphones< br > Frequency response range: 20-40000Hz< br > Impedance of Harman Curve Version n: 31-35?< br > Impedance of Harman Curve Extra Bass Version: 16-20?< br > Sensitivity of Harman Curve Version: 105±3dB< br > Sensitivity of Harman Curve Extra Bass Version: 103 ± 3dB< br > Jack type: 3.5mm< br > Pin type: 0.75mm< br > Wire: Detachable double and transparent black wire< br > Wire length: 120 ±5CM< br >< br > Product list< br > 1. Headphones (Harman Curve/Harman Curve extra bass version) < br > B. Eartips *3 pairs< br > 3. Double parallel wire< br > 4. Tuning lever< br > 5. Instructions< br >