Ready for some great laughs with your friends and family? This DIY machine features 10 hilarious sounds, including burp and fart sounds that are so real you'll be holding your nose. Hide the machine to play fun pranks, or add these funny sounds to your own brick structure projects. With E-Blox, you can build 3D circuits directly into your brick structures, so they can come to life with light, sound or motion. Compatible with other popular brick products, they offer a great addition to any STEM program. Requires 3 AA batteries, sold separately. For ages 5 and up. Smells not included.