（Strong ultrasonic head）が振動しません。初期不良だと思うので替りのものを送っていただけませんか？
また(RF head)が高熱になりますが、温度の適正値は何度ですか？
今後も購入を検討していますのでよろしくお願いします。
The strong ultrasonic head is not working. I think it was faulty to start with, so is it possible to get a replacement?
Also, the RF head gets heated to a high temperature, but what is the most suitable temperature for it?
We are looking for buy more products, so we look forward to your response.
