Satisfyer Legendary Duo - แหวนองคชาตและลูกอัณฑะแบบชาร์จ USB สีดำ - 4009902

Wasn't sure the dual ring would fit comfortably but it settles in nicely once you get the hang of it. The rechargeable battery is a big plus since I'm not hunting for weird little watch batteries every few weeks.

Wasn't sure the dual ring would stay put during use, but it does. The USB rechargeable part is handy, no hunting for batteries mid-session.

The double ring setup genuinely surprised me — the testicle ring adds a whole different kind of pressure than I expected. USB charging is convenient and it holds a charge through a few sessions. Only gripe is the vibration is a bit buzzy on the higher settings, but the lower ones are great.