HealthmateForever 4in1 wire connector (Plug:3.5mm dia.) + 4 pcs reusable self adhesive conductive snap on XL rectangle electrode pads for smart electronic palm size handheld digital pain relief device massagers. XL large rectangle pads size, made of medical non-woven fabric, flexible for big joints area and flat areas.

Even if you have one output massager, here is solution to use this wire as it has external two channels output. Just snap on four buttons. These pads are self adhesive, conductive , no gel applied. You can treat 4 pain points, like using 2 machines to save 50% time.