A battery-powered, portable, electronic device designed to apply transcutaneous electrical stimulation to treat: 1) stress and stress-related disorders, including but not limited to anxiety, depression, and insomnia; and 2) neuromuscular symptoms (e.g., pain) and disorders typically as a form of physical therapy. It consists of a pulse generator (EPG) with separate channels for connection of a dedicated electrode/probe for each application. The device may be used in the home or in a clinical setting.