I bought it with great enthusiasm since I am a fan of this particular brand in many products. I have purchased over 10 products which are very good. I tested this specific device in a challenging environment, which is why we buy this device, and it did not help as much as I expected, at least to have satisfactory if not excellent results. The device was used with both the ultrasound system open and the insect repellent tablet activated. Unfortunately, in the urban area where I was, I did not get the result I expected. However, in terms of quality, both as a device and as a construction, it is excellent in terms of the quality of the plastics, the quality of the batteries, and the overall quality of the device. I would have liked it to solve my problem, but it couldn't. The second device I bought and gave to someone in America told me that they used it and were also satisfied. The most important thing is that there are no tablets available on the market. Hence, on Scroutz. If we are going to buy tablets of a different brand to fit them into the device, buying them from the nearest supermarket in our neighborhood, then forget it.