SportDOG SDF-CT Charging Adaptor - Power Adaptor to charge your SportDOG Brand Contain + Train (SDF-CT) Collar Receiver and Remote Transmitter. Charges Remote Transmitter and Collar Receiver in just 2 hours Charging cradle snaps onto Collar Receiver Split-plug design allows you to charge the Remote Transmitter and Collar Receiver at the same time Fits standard outlets