MR PLAY Rung Butt Plug - Đen 12.8 cm Butt Plug Rung Sạc USB - BI-040082-MR

The USB charging is a lifesaver—no hunting for batteries, and one full charge lasted through several sessions. The tapered tip slides in smoothly, and the ergonomic curve hits just the right spot once it's seated.

The neck being so narrow means the plug stays put comfortably even when I'm moving around, and the USB charging is way more convenient than fiddling with batteries. Twelve functions is plenty to cycle through, though I mostly stick to the lower rumble settings.

The tapered tip made insertion surprisingly easy, even for a first-timer like me, and the narrow neck means it stays put once it's in. Took a bit of fiddling to cycle through all 12 modes with that single button, but the vibrations are strong enough that I found my favorites fast.