3 years warranty. The instrument is a device designed to improve a person's blood circulation and relieve tensions. The device provides compression therapy used to promote circulation and increase blood flow in the legs. FM 150 Pro contains 4 headlines; 2 thigh headlines and 2 lower leg headlines. These headlines apply the pressure generated by the device to the legs and thus help to regulate blood flow. The massage density of the device can be continuously adjusted, so that the user can select the desired level of density. The Beurer FM 150 Pro operates with 4 1.5V AA batteries, which extends its life life and allows the user to easily carry it. The device comes with the manufacturer's 3 -year warranty, which allows the user to rely on the quality of the device. Please let me know if you can help you with anything.