This set under official Avengers™license consists of 2 Walkie-talkie. One is blue representing Captain America's face. Second one is red and represents Iron Man's head.
Each Walkie-talkie measures about 17 cm (7 inches). They can be used outside and inside. You will just need to put batteries inside such as 6LR61/ 9V (not included) and to press a transmission button to talk with your friends.
This toys representing your favourite Marvel characters are perfect to entertain both large and small during Christmas for example !