On the lines of the pet Rolly by Sony is the Mint Tank Music Player. It’s the sorts that follows you around, obeys your commands and doesn’t complain if you ignore it. Features include USB connectivity, Bluetooth, WiFi, 2 High Output Speakers, Remote Control and endless track system to follow you around. When two tanks are within the same vicinity, they kind of communicate with each other and playback music with 3-D sound effects. Quite an awesome pet!