It is the Ca-PS700 Compact Ac Power Adapter, a compact yet powerful power solution designed specifically for Canon devices. This reliable and durable adapter serves as the standard charger and power source for the Elura 40MC, but its compatibility extends to a wide range of Canon models. It's designed to charge one battery at a time, providing efficient power management for your devices.The Ca-PS700 Compact Ac Power Adapter connects directly to the camcorder's body, allowing the battery to be charged while the adapter is attached. This unique feature eliminates the need to carry a separate charger during your travels, making it a portable and convenient power solution.