Touch 2.8 inch high resolution display
4 GB Memory (SMP558-4) / 8GB Memory (SMP558-8)
Built-in speaker
USB 2.0 connection
Micro SD card slot
Plays MP3 / WMA / WAV files
MPEG -4 (AVI) movie function
Supports JPEG format picture browsing
Built-in microphone for voice recording
Mobile storage function
Supports 3D sound
7 equalization modes
ID3 TAG support (title, artist, and lyrics - edited in advance)
Upgradeable firmware
Li-ion rechargeable battery
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FEATURES