Participants will routine methadone clinic care.

Participants will receive 50% of their methadone dose in the morning in the clinic and 50% of their dose will be dispensed in an electronic pill box for participants to take at home later that day.

Participants will be allowed to select one final Treatment-As-Usual or the MedMinder "Jon" Electronic Pill Box for the final phase of the study.

Within-subject evaluation across 2 phases with a final choice condition

Feasibility will be assessed by conducting a survival analysis of participant retention in the study

Percent of participants who select the Electronic Pill Box during their Choice phase (phase 3)

Participant satisfaction will be assessed using the Client Satisfaction Questionnaire- an 8-item self-report measure on which patients will rate their satisfaction with treatment on a 4-item Likert scale. Values will be summed for a total satisfaction rating (range 8-32), with higher scores indicating greater satisfaction. Participants will complete the CSQ at week 4 and week 8, and the CSQ ratings from the treatment-as-usual will be subtracted from the ratings following the MedMinder "Jon" electronic pillbox phase as a measure of change in participant satisfaction.

Participant satisfaction will be assessed using the Client Satisfaction Questionnaire- an 8-item self-report measure on which patients will rate their satisfaction with treatment on a 4-item Likert scale. Values will be summed for a total satisfaction rating (range 8-32), with higher scores indicating greater satisfaction. Participants will complete the CSQ at week 4 and week 8, and the CSQ ratings from the treatment-as-usual will be subtracted from the ratings following the MedMinder "Jon" electronic pillbox phase as a measure of change in participant satisfaction.