can the bluetooth be controlled with a phone, tablet or ipod?

you need choose bluetooth remote, then you can use app on phone ,tablet to control lights.

Am I able to buy the halo chasing harness and remote separate from the pods Thanks

yes, you can , pls contact our after sale deparment amy@vividlightbars.com, talk more details about your question.

do these chasing halo pods require a regulator to run them? such has a 5volt regulator form 12volts or will they work by just wiring them up to my battery?

hi, it doesn't need the regulator. it is connected directly to the power source and will work.