Amazon.com: 01 Remote Control Fart Box, Simulate Fart Sound Fart Box Toy Gift 4pcs AA Battery (not Included) for 9‑15 Years Old to Play for Party Prank Toy(Electronic Remote Control Fart Box,
Energizer Specialty A23 Alkaline 23a Security Batteries (2-Pack) in the Device Replacement Batteries department at Lowes.com