This study it to evaluate the usability of the WearLinq eWave patch in a general adult population.

Once eligibility is determined, participants will receive and apply the WearLinq patch for 7 consecutive days (or until an endpoint is met). A subset of subjects will be asked to participate in an Extended Use Cohort (30 days).

Inclusion Criteria:

• Adult >18 years old and able to consent
• Capable of using a smartphone app
• Willing to shave patch area if needed

Exclusion Criteria:

• Planning to undergo an MRI during the study period
• Known allergic reaction to adhesives or hydrogels or with family history of adhesive skin allergies, or any other dermatological conditional that could confound placement or results
• Presence of pacemaker, ICD or other implanted electronic devices
• Open wounds, lesions or infected or inflamed areas of skin at the placement site (left-center of chest/sternum)
• Pregnant or intending to become pregnant during the course of the study

No plans to be provided/Not applicable