... Basic functions: GPS, EDOG, MP3, MP4, games, etc. Screen size: 5.0 inch HD TFT, the main chip Centrality A5Storage capacity: DDR128MB, Memory ... expansionBasic functions: GPS, EDOG, MP3, MP4, games, etc.Main features: 5.0-inch digital screen 800 * 480Data permanently fixed electronic dog free upgrade ...