【Bluetooth 4.0 Supported】Bluetooth MP3 Player, compatible with Bluetooth Speakers or Headphones, Upgraded Bluetooth 4.0 provides lower power consumption and sound latency. ( Wired Headphones needed as antenna for FM radio function ) 【100 Hours Battery Life】: Built-in Lithium ion polymer battery. Up to 100 hours playback, fully charged within 2-3 hours by USB charging cable. Enjoy your wonderful musical journey with High Quality Headphones. Charging Cable and High Quality Headphones are included. 【Multifunctional Music Player】: RUIZU MP3 player with functions including Music playing, FM Radio, Voice Recorder, Video (128*160 AMV video), E-book (TXT file), Picture browse etc. A nice player for sporting, traveling, or jogging. It is also good for language learning, E-book reading, or FM radio playing etc. 28 language supported. 【Up to 128GB Expandable】 8GB MP3 Music Player with an expansion slot for memory card support up to 128GB enable to download thousands songs at a time. You can carry your music collection and favorite podcast or audio book anywhere.(Up to 4001 songs supported) 【Accessories and Warranty】Durable High fidelity Headphones are included, enjoy your music wherever you go with this RUIZU X06 MP3 Player now, it comes with 100% Satisfaction Guaranteed for 30 Day Money Back, 1 Year Warranty and Lifetime Service !