The Revitive Medic Knee Circulation Massager Foot Plate is a black and white plastic device designed to provide pain relief through massage. It is powered by a USB charger and has a voltage of 5V, offering a massage function specifically for knee, leg, and foot areas. The massager, branded as REVITIVE, features a remote control for easy operation and has a CE, UKCA, and FCC certification. With a 1-hour endurance time, this circulation massager is a convenient and effective option for improving blood circulation and relieving muscle tension in the legs and feet.