... treatment, no impact on your job or study6. No pain, no cut, no scar, no any side-effect.7. No rebound, ... promise life time warranty,If the machine you buy from us have problems within three years,we shall send ... teach you replace the parts.Exchange: All items from us will be entitled to a 1to1 exchange in ... exchanging case, buyer must take the shipping cost from your country to China, and we take the ...