detox foot spa with mp3 Net Weight: 3.5KG Gross Weight: 5.5KG Outside ... ,then open the switch(on back machine. red color), input four passwords (1,2,3,4 )reveal working number ... back machine. The red color), input four old passwords 1, 2, 3, 4 ,then input four new passwords, confirm the ... open the switch(on back machine. red color) , input four passwords. The number of times is deletedAttention: If have ...