Powered by a 67Mhz ARM9 and a 33Mhz ARM7, the Nintendo DS was first available on the 21st of November 2004. The revolutionary handheld console had two screens (one being a touch screen), microphone and wireless networking and a relatively cheap price. This lead the DS to over 64 million sales, more than three times the amount of the Playstation Portable. Cartridges also made a comeback, in the form of 'Game Cards'.