Welcome to the ToyDemon Forum.
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Props for great list. I can't add more technologies, but:For 2-motor vibration/ pulsation add Nobra twin charger. Hardly known in US, but around at least 3 years afaik. Pricey. But what makes it tempting for me, it seems to work on your entire dick, not just stim on the head. Heavy stim on the head is surest way to get off. But for some of us, or all the time, not what you want. = music with high notes only.
Posts: 303
Props: 77
Wow...that Nobra is ugly as hell but looks like it beats the poison out of your meat.
I have updated the list with pictures.