Speaker Frequency: 15mm Frequency Response: 20HZ - 20KHZ Input Impedance: 32ohm Output Sensitivity: 108 dB Interface: 3.5mm Stereo Standard Plug, Microphone Frequency Response: 30HZ - 15KHZ Input Impedance: 10Kohm Sensitivity: -58 dB / 3dB sound pressure level 1K

product description:

Speaker size: 15mm

Frequency response: 20HZ-20KHZ

Input Impedance: 32ohm (ohm)

Output sensitivity: 108dB

Interface: 3.5mm stereo standard plug

Microphone frequency response: 30HZ-15KHZ

Input impedance: 10KOHM

Sensitivity: -58dB / -3dB S.P.L at 1kHz

Interface: 3.5mm standard stereo plug