Feature:1. INNOVATIVE LAVALIER DESIGN: MP3 music player adopts innovative lavalier design, ultra small size, can be clamped at will.2. PLUG AND PLAY: Portable MP3 player uses USB1.1 2.0 interface, which supports hot plugging, plug and play.3. ANTI ELECTROMAGNETIC INTERFERENCE: MP3 player has no mechanical parts, anti vibration, anti electromagnetic interference.4. SUPER LONG STANDBY TIME: Portable HiFi music player built in rechargeable lithium battery, ultra long standby time.5. EXQUISITE WORKMANSHIP: Mini MP3 player with a stylish design, beautiful and exquisite workmanship, a good gift.Specification:Item Type: MP3 Music PlayerMaterial: Metal Shell1. Innovative Lavalier Design, Ultra Small Size, Can Be Clamped At Will, Simple, Exquisite, Fashion2. Support A Variety Of MP3 Music Format Digital Music Playback3. Can Be Used As A Mobile Flash Drive To Store MP3 Songs Or Data Anywhere, Anytime4. Can Be Used As A Small Memory Card Reader5. Both Have MP3 And Mobile Storage Disk Function6. Using USB1.1 2.0 Interface, Support Hot Swappable, Both Plug And Play7. Without External Power Supply8. Storage Media. No Mechanical Parts, Anti Vibration, Anti Electromagnetic Interference9. Built In Rechargeable Lithium Battery, Ultra Long Standby Time10. Fashionable And Compact Shape Design, Beautiful And Exquisite Workmanship, A Good Gift.Package List:1 xMP3 Music Player1 x Charging Cable1 x Earphone1 x 128M Song Card