THE TRIGGER IS (USN 1 - 4 / USN 1+ - 4+ / USN 1++ - 4++ / USN1+++ - 4+++ / USN 0 ) TRY IT, BUY IT OR ADD IT IN YOUR WISHLIST, AND IF YOU LIKE THE PRODUCT, PLEASE LEAVE A REVIEW TO SUPPORT ME . TO SEE ALL MY PRODUCT PUT IT IN ALL (NOT WOMEN OR MEN) .THANK YOU