OK1 earphones are the flag ship model of YUIN OK series earphones.
Earbuds / In-ear Earphone Convertible design
Transparent, smooth and neutral sound
Best high extension in earphone product
Ultra low distortion, high impedance for hifi or professional monitor
Y cord, 6ft
1/4 Stereo phone adapter
Impedance:150 ohm(at 1KHz)*
Frequency response: 20-24,000Hz
Sensitivity:109 dB(at 1KHz)
Maximum Input Power: 1000mv
*Head-amp or high output portable audio required
One year official warranty.