The Mueller M4 console connects to all REVIVE garments to provide air flow to begin treatments. The M4 console has 7-in-1 features including smart technology for full release and maximum lymphatic uptake, bluetooth connectivity, multiple modes, overlapping chambers, fast cycles for more flushes, and up to 8 hours of battery life. This device is made from clean, medical-grade materials. M4 console only. RecoveryCare REVIVE compression therapy products are engineered and manufactured in Israel to exceptionally high quality standards. Do more than recover, REVIVE.