Deep inside your computer lives a world of small creatures They spend their days delivering mail searching for information & recycling old stuff There are also bugs among them trying to throw the network off course Though the networks are inspired by the computer world a computer is not required to play with them The Network system is fully compatible with Brio s classic railway yet certain components are detached from the tracks & can be played with independently Place Viro on the mailbox together with a message & listen to the result Contains 1 Viro character 1 reader station & I unique message Requires 3 x AAA batteries included Length 6 6 cm