Educator Model 10V DUAL CHARGER Dual Charger for Models ET-400TS, ET-402TS, ET-500TS, ET-502TS, ET-700TS, ET-702TS, ET-800TS, ET-802TS, ET-1200TS, ET-1202TS 10 volt charger allows you to charge select Educator or Einstein remote dog trainers with dual-prong charging port For models ET-400TS, ET-402TS, ET-500TS, ET-502TS, ET-700TS, ET-702TS, ET-800TS, ET-802TS, ET-1200TS and ET-1202TS Only for models containing "TS" in model number (model number is found on the back of the transmitter) Only for models containing "TS" in model number (model number is found on the back of the transmitter) Note: 2-dog systems require a splitter cable (not included) in order to charge both collars plus transmitter at the same time; only fits the older Educator/Einstein models listed above