This is a used Dog Radartron Model #500-DT unit which includes: Carrying case, 1 active collar, 1 dummy collar, transmitter, charger, test light and cap tool.  The unit hasn't been used recently and the batteries will not charge as they are old.  DT systems has the replacement batteries on their website - dtsystems.com under parts. The batteries will be included for ID purposes only. This comes with a  leather holster for the transmitter as well as the original manual. The unit has 6 intensity levels on the transmitter and is waterproof. Selling it because we no longer have dogs.