You can’t use lithium batteries since they usually have 3.7 V and the voltage should not exceed 1.5 V. But you can still use a rechargeable battery (only with these specs: 1.2V AA Ni-Mh).
Don’t worry! As mentioned, we’ve included 1.5V AA alkaline batteries for your convenience. *Confetti still not included! (Don’t get it? Jump to What comes in each package?)