The Phantom II Pro delivers two channels of 48-volt phantom power in a compact enclosure. It can be powered by a 9-volt battery or external adapter (not included). It features innovative low-power circuitry that provides over 10 hours of battery life under a full load on both channels. Its a great solution for mobile recording, especially with a bus-powered interface.
This is a great phantom power source that gives your mics clean power. The only set back it has is that the 9V battery on mine doesn’t power it exactly as well as when I use the plugged in power supply. I’ll try with a fresh 9V battery soon, but overall a great well made product that makes the best use of your mics if needed.