1. Adopts passive infrared sensing technology.
2. Select single play mode/all circle play mode by holding Button B.
3. With the function of power-off memory.
4. Supports to play MP3 audio files with high sound quality
5. Automatically trigger to play back a sound.
6. Load/update audio files through a micro USB cable.
7. Built-in 4MB SPI flash as the internal memory.
8. Adjustable volume level from 1 - 8 by pressing button B.
9. Built-in 3 Watts amplifier to ensure loud and beautiful sound output.
10. Auto sleeping circuits design, which can keep long-term standby.
11. Built-in automatic power re-charging circuits.
12. Plug and play type design.
13. Built-in 500mAH lithium battery, time durable.