Usage Tips:Features: 1. Fart Machine: The speaker function adds more bass and volume, those ing fart sounds you asked for. With this device, you are sure to embarrass your victim when you are in a bad mood. Hide the speaker and press the remote at the right moment. 2. Multifunctional Toy: If someone upsets you, you can use it to play a prank, which will definitely make him angry. Great fun, a tricky and fun must-have you deserve. 3. Suitable Occasions: Fit for birthday parties, April Fool's Day, Valentine's Day, Christmas, Hallon, and other parties and other holiday gifts for kids and families. 4. Realistic Effect: The funny remote control fart box simulates the sound of a fart, which can be a wonderful and nice party prank toy. 5. Suitable For Adults And Children: Designed for children aged 9 - 15 and all adults (for reference ), the fart box is powered by 4 AA batteries (not included). Dimensions: 12 x 11 x 4.2cm. 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) Package Included: 4 x Fart Machine 1 x Remote Control