 However, because wallets often contain multiple cards with smart chips capable of being interpreted by the reader system in place by Myki, regardless of their applicability to transport, simply placing a wallet containing a Myki card against a reader can prove problematic as the card-reading technology is incapable of consistently distinguishing between Myki and non-Myki smart card chips.Passengers do not need to touch on or off in the “free tram zone”, which covers essentially the Melbourne CBD, but need to do so if they will continue to travel beyond the zone.Official Myki pouches can be acquired for free at railway stations.