I had doubts about the product I don't understand because I didn't charge I thought it didn't work was my mistake I wrote the seller received reply soon, I got well packed and safe in your box, it takes 4 hours to test to see if it helps me with the skin. Received well packed, I arrived earlier than I expected I had doubts about loading the product was my mistake I thought it didn't work, I wrote to the seller received reply soon, it only remains to charge the 4 hours and prove it I hope it works on my skin