導線分線器（一對）

Running the eye mask and lip mask at the same time used to mean picking one, so these splitters solved that annoyance right away. The connection is snug and neither accessory cut out during a full session.

I was skeptical these would fit my device, but the splitter plugs in perfectly and now I can run my eye and lip masks at the same time. The connection feels solid, no wiggle or cutting out mid-session.

Paired these with my conductive eye mask and it's so nice to just relax hands-free instead of holding the probes the whole session. The splitters fit snugly and I didn't notice any drop in current, which was my main worry.