1. MP3 audio format, excellent sound quality;

2. Six levels volume for option, digital tube shows the volume levels clearly;

3. Human body induction, induction range up to 4 meters;

4. Built in standard 32Mbit=4Mbyte SPl-flash;

5. Power-down memory function, when power off, the previous setting will be saved;

6. Support to replace the audio files of SPI Flash through USB interface on computer;

7. Can be powered by 3M batteries or 5V 1A power adapter, only one choice available at the same time;

8. Built-in 80 2 Watt Speaker;

9. Waterproof level: IP43;