DIY 3D Printer Portable Mini Laser Marker

Recently, I found a very small marking machine, its size is very suitable for carrying, it can be powered by a mobile power supply, supports mobile phone wireless Bluetooth control, basically all supported file formats: JPG/BMP/PNG/G-code.
Is anyone interested?

Is this yet another laser without any protective enclosure?

If people keep damaging their eyes because they are buying and using lasers with no protective enclosures, I’m worried that we’re going to see more restrictive regulations that make this hobby harder.

The picture doesn’t tell very much. Is this a galvo diode laser?