... change fonts, intelligent fragments, preservation of historical records17) Built-in microphone, hi-fi recording, support AB repeat function18) Support ... TF card from 1GB to 16GB20) Built in FLASH memory from 1GB to 32GB21) Built-in high-capacity battery 2800MA, continuous watch ... headset)22) Support USB2.0 high-speed transmission23) Built-in flash memory from 2GB -8GB24) size:192mm*126mm*11mm, weight ...