Proof of Concept (POC) Study of the Soliton's Acoustic Scar Reduction (ASR) Treatment for the Treatment of Keloid Scar

Inclusion Criteria: * Male or female older than 18 at the screening visit; * The participant is healthy, as determined by the investigator based on a medical evaluation including medical history; * The participant has a keloid that is easily delineated photographically located on the chest, back, trunk or upper arms and legs. * Keloid size greater than 1 cm and less than 8 cm in length, with a height of at least 2 mm. * Keloids less than 5 years old * Body Mass Index (B.M.I.) is \> 20 * Participant is willing to not undergo any other keloid treatments for a period of 12 months following ASR treatment. * Participant is willing to participate in study and adhere to follow-up schedule. * Participant is able to read and comprehend English or Spanish. * Participant has completed the Informed Consent Form. Exclusion Criteria: * Participant had treatments, including topical steroids, to the keloid being treated in the study in the prior 12 months. * Participant is unwilling to have research photos taken of treatment areas in the presence of Sponsor's researchers. * Participant is unwilling to have ASR treatment provided in the presence of Sponsor's researchers. * Participant is pregnant or planning to become pregnant during the duration of the study. * Metal or plastic implants near the area of the treatment (vascular stent, plates and screws, chest wires, hips, elbows, knees, etc.). * Active electronic implants such as pacemakers, defibrillators, cochlear implants, nerve/brain stimulators, drug pump, etc. * Medical disorder that would hinder the wound healing or immune response (no blood disorder, etc.). * History of coagulopathy(ies) and/or on anticoagulant medication. * Skin disorders (skin infections or rashes, extensive scarring, psoriasis, etc.) in the treatment area. * Current smoker. * Any surgical procedure in the prior 3 months, or planned during the duration of the study.