Spark Biomedical, Inc., a U.S. pioneer in wearable neurostimulation, offers the only non-invasive, FDA-cleared, drug-free treatment for opioid withdrawal backed by Level 1 clinical evidence. Their groundbreaking Sparrow Ascentâ„¢ technology redefines recovery by providing 28 days of safe, comfortable, drug-free opioid withdrawal relief designed to improve the journey to recovery.