Does the NYTC Trans Masc Pro Pump have a lithium ion battery?

Sorry for the weird question. I purchased the rechargeable pump while in the US for the holidays... I'm flying back to another country this weekend and just realized I'm not sure if I should be putting it in my carry on or my checked baggage.

I'm asking here and not them because I've been having difficulty getting responses from NYTC after having a difficult time ordering (they created an order and gave me a tracking number but never charged my card, so had to purchase thru Etsy instead of their actual site, I messaged twice and they didn't get back to me)