Well Focus 10 was part of the Gateway program, so it did use Hemi-sync technology, it was really the first use of what would later become binaural beats. Hemi-sync itself was just a technology so it didn’t really have any objective other than to do what it was designed to do. Focus 10 was really those very first introductory tapes: the energy conversion box, the affirmation, the humming-breathing (although I think that was introduced in Focus 12), etc. It was the first of the states before going out of body: mind awake, body asleep. Then came Advanced Focus 10, Release and Recharge, Free Flow 10, etc all just really experimenting with state 10.
Focus 12, color breathing and the energy bar tool etc came next in Threshold, and it wasn’t until Wave III you actually got to remote viewing and initial OOBE training. And then Focus 15 wasn’t until Wave 5, the “no time state”. So they took a whole five CD’s to get close to what the Taoists were able to develop with just simple sitting practices, and it wasn’t until Wave 6 with Focus 21 that they bring people to the bridge between the physical and non physical realms. Everything up until that point is pretty ordinary states that can be achieved in normal meditation.
You can read about the different focus levels here.