Model: K1-S
Style: In-Ear
Wire length:   125cm
Impedance: 16Ω
Sensitivity:  125dB
Rated Power:  5mW
In-line Remote Control: Included
Transmission power:   Class2
Frequency response:  7Hz-21500Hz
Speaker impedance: 32Ω 
Speaker diameter: 10mm
Speaker sensitivity: 105db±3db
Microphone sensitivity: -42db±3db