Necklace MP3 features:

1. 'sUnique design-boot: insert earphoes, the player will  automaically start, headset off, teh player will automatically shut down when the boot after  2 seconds, the machine will automatically play songs.  

2. local touch using two key steps: on the next sing or a function of short-time touchleft or right;  

3. To adjust the volume when you need to adjust or right for you to choose the volume.  

4. charger"USBconnection to headphones into holes, USB plug connected to a compuuter USBb port or charger interface to completethe charge.