Use the force when you acquire this Jedi Holocron Cube! When a Kyber Crystal (sold separately) is inserted into the cube you can unlock colours, sound effects and even authentic film dialogue from characters such as Yoda, Luke Skywalker and many more. The colours and sound effects you hear depend on the colour of the crystal inserted. It is rumoured there are other surprises in store for those curious Jedi who experiment with the cube and the dark force Sith Holocron.