Remote Controlled Fart Machine: Funny remote control fart box simulate fart sound, can be a wonderful and nice party prank toy. Customized Fart Sounds: You can also adjust the position and squeeze speed to hear different fart sounds, funny tricky toy. For Adults & Kids: You can use it as a prank, which is sure to bring endless fun, friends tricky and fun toy, suitable for children playing. Easy to Operate: Make the surface of the vent is about 23 cm from the end of your thumb, and then squeeze hard. Battery Powered: Special designed for children of 915 years old to play (for reference only), fart box powered by 4pcs AA battery (not included). Item TypeFarts Box MaterialPlastic ColorBlack Suitable Age 9-15 years old (for reference only) Farts Box SizeApprox. 10 x 8 x 3cm / 3.9 x 3.1 x 1.2in Remote Control SizeApprox. 7 x 3.5 x 1cm / 2.8 x 1.4 x 0.4in Farts Box Battery 4pcs AA battery 1.5V (not included) Remote Control Battery1pc x 23A battery L1028 12V (included) Package List1 x Farts Box and 1 x Remote Control