The sound pressure stimulation provided by the LIPUS (Low Intensity Pulsed Ultrasound) system accelerates the formation and union of fractured bone and promotes rapid recovery. Featuring 2-channel output capability, the OSTEOTRON IV is also capable of generating two frequencies: 1.5 MHz or 0.75 MHz. The OSTEOTRON IV enables treatment of multiple areas and provides effective therapy to fresh fractures, delayed unions and nonunions. ?Three-step output control and two frequencies,1.5 MHz or 0.75 MHz (optional), for shallow or deep fracture areas ?Simultaneous therapy of multiple areas with 2-channel output capability ?Easy probe attachment with dedicated probe retainer ?AC or battery operation ?Excellent BNR and ERA for safe, effective therapy