Pain killer: This device treats acute and chronic pain and is used to accelerate healing process, increase muscle strength and decrease inflammation Neostem: This device gives three type of electrical current: biphasic current, galvanic current and TENS. The device contains 40 preset programs and a large free memory places to store personalized programs Combination units: Our center has 2 machines and each machine contains all type of electrical current. These machine contain preset protocols; therapist can adjust these protocols according to patient conditions and save adjustment with patient name. In these devices the therapist is able to use electrical stimulation with vacuum or with ultrasound to the quality of treatment. The uses of these devices is to treat many conditions like Pain relief, muscle strengthening, decrease muscle spasm and improve muscle circulation.