Noted online complaints of USB Charging Cord issues. Sent query via SonoHealth email chat. Received answer from “Happiness Engineer” within 5 hours satisfying concerns. Ordered EKGraph and received within 2 days. Reached out to same SonoHealth online “Happiness Engineer” originally engaged concerning missing Protective Plastic Film on Right Side Sensor. Missing Protective Plastic Film caused sensor’s appearance to be Tarnished and Dull. Sent photos showing Right Side Sensor’s condition and within 4 hours SonoHealth’s Happiness Engineer processed a replacement EKGraph. Replacement received with Sensors Removable Protective Plastic Film intact. Very impressed with SonoHealth’s responsive actions taken and Most Appreciative of Pia C’s (Happiness Engineer) professional handling of my case.