3.5mm 4G Mini Touchable Necklace MP3 Player (Black) Compact, stylish and portable. Special necklace design makes this MP3 player different from those ordinary players and you can hang this player on your neck. Touchable design makes you easy and convenient to control the volume. Designed for playing your favorite music. Support MP3 music format. Suitable for 3.5mm port earphones. Built-in 4G memory card.