KQSE QuadStar Elite Electro Therapy Device

Stellar portable unit for dealing with knee pain using interferential mode. Found it very helpful to work with a licensed physical therapist to learn the proper placement of electrodes and to set operation parameters. Would have given it five stars if the durability had been better, after some time the unit I purchased needed to be repaired and was sent back to BioMedical Life Systems where it was repaired and given a new serial number, sadly it never worked quite right after the repair. Would still highly recommend it for those with knee pain that don't respond well to other treatment options.