12 Volts DC operation;
BNC video connector.
The waistpack provides you with sufficient room to stow your own video transmitter, along with a small battery.
Alternatively, no transmitter or recording device is needed. Simply wear the waist pack as a deterrent against crime. With such a conspicuously concealed camera, nobody will know whether or not you're live, so they will simply have to be on their best behaviour at all times.