These durable lead wires each use the 2.5mm mini-plug to two 2mm pin connectors.

Used for electrode pads that accept the industry standard 2mm pin connector

Note: Make sure that your device uses the 2.5mm mini-plug (smaller than a headphone size plug).

If your device has the standard 3.5mm port (headphone jack size), the standard 3.5mm port cables ASIN B00P67NIQ0

Tens Unit Cords for Tens/EMS Machine,DC 2.5mm, 2 pins, Length 60''

Two high-quality Tens electrode lead wires.