Otto Engineering Listen-Only Earphone Kit with Acoustic Tube (Black, 3.5mm Mini Plug) V1-10436
$63.61
Free Express Shipping! Otto Engineering Listen-Only Earphone Kit with Acoustic Tube (Black, 3.5mm Mini Plug) For Listen-Only IFB, For Otto Speaker Mics, 3.5mm Right-Angle Mini Plug, 4' Cable, Includes Acoustic Tube