We have to say that the amp [Terry] put these transformers to work in sounds pretty amazing — not a hint of hum. Good work, we say, but we hope he has a plan in case the vacuum tube shortage ...

Here's all that it can do. At its core, the K20+ Pro is a mini robot vacuum with D-ToF Lidar Navigation and dual laser detection; based on its size, it doesn't look like it has mopping capabilities.