brena,
Let's break this into two bits:
1. Can you take it on the airplane?
Probably, if it is not likely to be perceived as a weapon at security. However security is unpredictable and SLF here have reported inconsistent processes and downright silly actions. If they decide you are not going to carry it on, you will not carry it on despite your explanations and protests.
2. Can you use it on the airplane?
Probably not. The crew will not know what the device is and will err on the side of caution. You may also be considered a risk (especially if you attempt to use it without advising the crew). There is also no need to use it (as explained above).
Good luck.
If it was me, I'd put it in my checked bag.