Multifunction: The voice changer can easily change your voice to robot, male, female, and laughter sounds. With the big red mouth design, children can also turn this voice changer into a megaphone. Can record your voice, play it back through the speaker, or make it high and low frequency. Comes with a strap, so your children can carry it everywhere. Best gift for children, can also be used as a party, costume item and other theme parties. Powered by 2 AA batteries (not included), you need to buy them yourself. Specification: Material: Plastic Color: As the picture shows (random color) Size: Approx. 16 x 11 x 13 cm / 6.3 x 4.33 x 5.12 inches Specifications: Multifunction: The voice changer can easily change your voice to robot, male, female, and laughter sounds. With the big red mouth design, children can also turn this voice changer into a megaphone. Can record your voice, play it back through the speaker, or make it high and low frequency. Comes with a strap, so your children can carry it everywhere. Best gift for children, can also be used as a party, costume item and other theme parties. Powered by 2 AA batteries (not included), you need to buy them yourself. Package includes: 1 pc Voice Changer Toys