Review on 🧊 Red Mini USB Fridge - Enhanced SEO-optimized Version by Jeff Kickthedogband

Everything is fine. Very beautiful! It will turn out cold as a warm drink, at least very well. It keeps cold drink cold. Switch position "I" is for cooling and position "II" for heating. I found you can put a small cup of coffee in it and it holds the heat pretty well. It doesn't get cold inside, there's no insulation (I wrapped it in foil inside and now it's a bit chilly inside). It works with a "Peltier element" that sits directly under a metal plate. It gets cold, there is a radiator at the bottom (a metal brick with fins), the fan takes heat from the radiator, and vice versa in the heating mode. This radiates heat through an aluminum can or paper cup (works better with metal/cans). In cooling mode, the temperature reaches around 43 degrees Fahrenheit after an hour of operation. Up to 150 degrees Fahrenheit in heating mode. You also don't need a computer to use it. I use it in an outlet with built in USB and you can also use it with a battery or wall charger. Even in the car! That's why I'm only giving it 3 stars: Because if I didn't know how to solder or repair electronics, it would be in the trash. The cable broke because it barely held up inside. I also had to fix the door and add foil for insulation. worth 20 bucks? Of course. But don't buy it for $40 from other sellers as it will be fake for sure.