1. Fart Machine: The speaker function adds more bass and volume, including the booming fart sounds. This device can be used to play a prank on others when desired. Hide the speaker and press the remote at the right moment. 2. Multifunctional Toy: If someone upsets you, it can be used to play a prank, which may cause them to feel annoyed. It is considered fun, a tricky and enjoyable item. 3. Suitable Occasions: Fit for birthday parties, April Fool's Day, Valentine's Day, Christmas, Halloween, and other parties, as well as holiday gifts for kids and families. 4. Realistic Effect: The funny remote control fart box simulates the sound of a fart, serving as a wonderful and nice party prank toy. 5. Suitable For Adults And Children: Designed for children aged 9 - 15 and all adults (for reference only), the fart box is powered by 4 AA batteries (not included). Dimensions: 11 x 8 x 8cm. 6. Specification: Material: Plastic; Product Color: Black; Package Size: 25 x 17.5 x 6cm; Package Weight: 165g; Battery: Fart Machine: 4 x AA Battery (Not Included), Remote Control: Button Battery (Included). 7. Package Included: 4 x Fart Machine; 1 x Remote Control.