... , SRT, SMIFMbuilt-in FM Radio, FM recordingcamerano cameraspeakerno speakercapacity1-16GB flash memory (optional)USB portUSB2.0function7EQ, A-B repeat, ID3, firmware ... upgradeadditionalrecord, E-book, games, image view, U-diskplay timeaudio 8~16 hours, video 3~6 hoursbatteryrechargeable Lithium ...