No. Those don’t burn fat.
They shock and spasm the muscles under the device.
Any “before and after” testimonials you see in all those types of infomercials, the primary reason those people lost weight was due to dietary changes, not the ab-belt device; and frequently due to being “specially motivated” to lose weight for the infomercial, like free trips, monetary incentives, etc.
No, the Cool Fat Burner helps to activate “brown fat,” increase adiponectin levels, re-balance hormones, and create a thermal load, all of which is proven to burn calories and fat, help build muscle, and works independent of diet and exercise.