can you recommend me a tens unit? preferably from amazon?

[Pleasehelpmegod]

can you guys recommend me a tens unit? preferably from amazon?

[frigator]

I have one called a Tens 7000 from amazon.its ok. Order extra stick on electrodes and most imp try to find proper placement of electrodes. I just used two wires instead of all four. I used to sleep with it before me hip surgery. I have not found it helpful for my pain now though others have.