Earphone Specifications:
Driver Unit: Φ16mm
Impedance: 32ohms
Sensitivity: 104±2dB S.P.L. at 1KHz
Frequency Response: 20Hz-20,000Hz
Max. Input Power: 40mW
Cord Length: approx.2.3m
Plug Type: 3.5mm Stereo

Microphone Specifications:
Dimensions: 6 x 5mm
Directivity: omnidirectional
Impedance: low impedance
Sensitivity: -54±2dB
Frequency response: 20Hz-20,000Hz
Rated voltage: 3V

products features:

Earplug series earphones,with invisible microphone in line
With volume control in line
16 mm NdFeB magnet drive, it has enhanced the effect of bass
RoHS and customers Logo available
Perfect use for notebook computer to listen music and communication

Packaging:Blister
Carton Dimensions: 50 x 50 x 74.5CM
Carton Quantity:120PCS/CTN