T31 ODM earphone a kind of Cable inear earphones. T Series Acoustic Tube Listen Only Headphone; Safety Equipment's "T Series" acoustic tube.
Acoustic tube ear pieces are lightweight and flexible. The clear acoustic tubing goes over your ear. The small "mushroom" bud fits snugly, but comfortably in your ear.
T Series Acoustic Tube Earpiece Headphone has the following features:
frequency response :18Hz-22Hz.
Resistance:16 Ohm.
Sensitivity:119dB. |
