... Car GPS Navigation FM Transimitter ,MTK,CPU 500mHz Built in 4GB Map GPS Specification:HARDWARE 1.CPU: MTK3551 2.Frequency: 500mHz3 ... .Edit the calendar by hand3.FM transmitter default CAPACITY 1.SDRAM:64M 2.Flash ROM:128M RAM3.External extending card: SD ... Car GPS Navigation FM Transimitter ,MTK,CPU 500mHz Built in 4GB Map