This 5 volt charger allows you to charge your Educator remote dog trainer and e-fence receiver collars. For models ET-300, ZEN-300, ET-302, ZEN-302, ET-400, ET-402, ME-300, ME-302, BP-504, FE-560, FE-560B, FE-562, FE-562B, RX-070, RX-090, RX-1000. Two leads allow simultaneous charging of transmitter and receiver. Note: 2-dog systems require a splitter cable in order to charge both collars plus transmitter at the same time.