The cooler box works flawlessly. Now I have always cold drinks in the car. Cooling is keeping well for some time, even without electricity, because the box is well insulated. The only drawback is that they can not be switched off in Auto mode, ie at 12 V, and continues to run without interruption. Here then the plug must be pulled. Also, a speed regulation and thus also noise reduction is not possible. In 220V operating the device can be reduced to ECO. Then it is very quiet. Conclusion: Good device with small weaknesses but readily for this price a buy recommendation.
Positives: Large and spacious, not too heavy Good cooling performance and insulation 12V and 220V operation possible ECO mode in 220V mode, then very quietly
Negatives: Regulation / ECO in 12V-operation is not possible
Conclusion: Good device with small weaknesses but readily for this price a buy recommendation.