我用 次聲的 8 [New Design:  CHI Palm] to treat a child who is hyperactive. After a 10-minute treatment, my grandson is calmed down for a few days. I also used the 次聲的 8 患有躁動的青少年。結果幾乎是立即平靜和情緒提升。

羅傑·普朗克博士，印第安納州韋恩堡