Order a TENS unit from this "company", Apria Healthcare. They said it will take 3 to 7 days to get it. First day said prescription was wrong. After faxed the prescription 7 times they said item was in back order. 28 days later after 9 calls they said they shipped item by FedEx. They provide a tracking number that did not work with FedEx. At the end I have to cancel the order and get from another company. Now they are trying to charge my insurance company saying that they shipped the unit and they never got it back. They don't have a valid tracking number that proves that this people are really unprofessional and a bunch of liars.