Yeah, the latency is way too high for any kind of real-time recording. If you’re just programming things in it can be serviceable, but all the visual feedback from your DAW or apps on iOS will not match what you’re hearing, especially in regards to playheads and stuff like that. It can make doing piano roll stuff really confusing because you can’t tell exactly where the timing was off, etc.
RF wireless has significantly lower latency, but is often really variable. There are some companies like AIAIAI that are trying to do “producer” headphones that have RF wireless capability, it might be worth looking into some of those if you really have to have wireless.
Hopefully someday we’ll be able to have wireless earbuds like airpods that are usable for music production. It’d be amazing to have that instantaneous connection so that you could just pop in and do some work for a few min if you have an idea. But sadly not possible today 