I will only use Tritronics. I've had Dogtra, Sportdog, and Innotec throughout the days and only 1 will I ever buy again - Tritronics. I've had 3 sets from them, the Pro 500, Classic 70 G2, and Trashbreaker G2 EXP 6 dog which I have now and LOVE them!

Now for crazycoonhunter the reason why you don't buy electronics from e-bay is that you might get a dead unit. But mostly innotec is so far behind on technology that it can't even keep up with the likes of dogtra, dt, and most certainly not tritronics. If you ask any pro dog trainers out there 99 percent of them either have dogtra, dt or tritronic. With tri tronioc leading the pack, why because innotec breaks down to easily. The Pro's do the most punishment there is on these units. I personally run with the Pro 100 xls from Tri Tronic 2 dog unit, because it is the best unit for my application. I also have a Field 70 in Tri Tronic for a back up unit in a 2 dog unit as well, but I also train dogs for customers as well.

sportdog 800 or better, beaper included, less than 200 new. mine works more than fine.

i have sportdog prohunter 2400 an tritronics classic 70 with that being said you said you are new to training a word of (warning) be careful the use of collers can backfire on you as much as help.