The call to the mic as canal phones!

Speaker unit Units:
* Type: Canal (canal)
* Driver size: 8.8 mm
Cable:
* Length: 1.2 m
* Shape: symmetry (Y-shaped)
Plug:
* Type: L-shape
* Diameter: 3.5 mm
* 4-pole jack
Remote Control:
* Mike (talk)
Compatible Models:
* All smartphones that use the 4-pole jack American
Main Specifications:
* Maximum input: 20 mW
* Sound Pressure Sensitivity: 94 dB / mW
* Resistance: 16 Ω
* Playback frequency range: 20 ~ 20,000 Hz
Weight: 3.8 g (without cord)