Etymotic ER4P-24 Cable Converts ER-4P to ER-4S

Converts ER-4P to ER-4S

12" extension cable that converts the ER-4P into an ER-4S. Cable uses the same wire used in the ER-4P, and the same gold plated right angle 3.5mm (1/8 inch) phone plug, and an inline 3.5mm jack.