This is a Tiens S-780 Blood Circulatory Massager. It is a vibrating massage machine designed to improve blood circulation and stimulate acupuncture points.
Features: Uses vibration and massage to improve circulation, stimulates acupuncture points, and is said to provide benefits similar to a 10,000-step walk in 15 minutes.
Purpose: It is used to help relieve stress, fatigue, and aching muscles.