Gender X ECHO - Đen 15.3 cm Nút hậu môn sạc USB - GX-RS-3939-2

The removable silicone sleeve makes cleanup way easier than I expected, and the flexible finger ring at the base gives me confidence during use. The USB charging is a lifesaver—no hunting for batteries, just plug it in and it’s ready when I am. The graduated bumps hit just right once it’s seated, an

The three graduated bumps do add a nice stretch on the way in, and the removable sleeve makes cleaning straightforward. But the vibration feels more buzzy than deep to me, and even on the lowest setting it's a bit much for a casual session. It works, just not the "echo" effect I was hoping for.