S64 Customer Service Tel: (781) 678-8164 Mon. - Fri., 11am - 8pm EDT ***Unavailable Weekends & Federal Holidays*** S64 Service Email: support@tagry.studio If you have any problems with your S64 earbuds, please contact us via service email support@tagry.studio or call (781) 678-8164 Mon. - Fri., 11am - 8pm EDT. We will help u fix it soon.