Just an FYI, when my (button) started sticking I thought it may have been because of the juice getting in there and maybe drying kinda sticky making the button stick..It got worse and worse until the whole unit had become possessed...I talked to Brandon at Evolv and he informed me that when they were testing these, they doused them in juice and assured me that would not be the problem... As time went on it became more clear my Darwin had an electrical problem of some sort...I just wanted to inform about the juice