Electric Knife Sharpener Multifunctional Motorized Rotary Whetstone High-Speed Sharpening Professional Rotating Sharpening Stone

The picture shows a cord for the sharpener and there is an indication about batteries; I thought it worked both from the mains and from batteries, but there is no cord or socket anywhere? I only ordered it because of this, as I was sure it worked from a cord😭

Put in new batteries, tried to sharpen a knife, it didn't work. The sharpener stops with light pressure of the knife on the stone.

When we tried to sharpen the knife, the blade cut through the whetstone itself.

The engine is weak, when you press the knife, it stops

Something not very good. Sharpening manually is better and faster.

The sharpener is good, works well