I have three (3) Garmin DC 30 collars, two house chargers,and two 12 vdc chargers, one case, the books. They all work as of today. These are part of my Garmin astro 220 system, Sold my dogs, sold most of my kennels, so next is the collars, 300 dollars buys it all. I could be talked into throwing the astro 220 receiver into the mix but that would add 300 dollars more to the price.