Maktrex International brings this noteworthy tens 4 channel auto electro therapy equipment which is considered as the best machine to be used in hospitals, health centers and clinics. It is made of premium quality material and features cutting edge technology along a timer of 0 to 99 minutes. This machine is an important component that is well designed and provides satisfactory results. Further, it has 7 second on and off burst mode selection and power input of 220V/50 Hz.