The most versatile and user friendly E-Stim control unit available today. If you want More Power, More Control, and more fun, then the 2B is the one you want.
Last time I used "MinesUncut Deep Pleasure_70" mp3 file and it was a blast! I set PC volume around 65%, wired thi-phase: 1 - sticky pad on cock, 2 - smaller pad 4x4cm on crotch, 3 - small aliexpress buttplug (common). I didn't change feel (50) and played file. After about ~50 min, BAM!
I find this file very pleasant, feels smooth with a pintch of edginess (in a pleasant way). There are no unexpected shocks and I could easily adjust the power lewel. Great for porn action, I edged several times before I cum.
I encourage you to type other mp3 files with the description on how to wire, how It feels, what to expect and how to adjust the box
