I opted for this device after it had bought an alleged ultrasound device in the TV, which was none at all but. The device is easy to use. Prior to the adoption I have it fully charged through the Base Station, as well as recommended. A short test was positive, so let's go ...... I always clean my face with an electric facial brush, then wear my care, and after a short exposure time I wear something from the supplied Serum from Elle by Beurer. As already noted by other customers, there is no indication of the ingredients of the serum, unfortunately. But it feels very pleasant and smells fresh and slightly floral. I can not tolerate it with no problems, but it would have given the high price does not buy more. The device is working properly. I find the application to be very pleasant, a real micro massage and a modest amount of heat. I can definitely confirm that my skin has been greatly improved, after a short time. I turn to the treatment 3 to 4 times a week and it would also not want to miss. The value for money is absolutely acceptable for me. The device is for me really worth every penny. I highly recommend it and hope it will give me a very long time in good stead.