mp3 player, 16gb mp3 player with bluetooth 5.0, built-in speaker, portable hifi lossless sound music player, with fm radio, voice recorder, touch button with screen, support up to 128gb(black) ruizu ruizu d50 metal shell mp3 player allows you to listen to high-quality music during your workout or outdoor activities. with durability that matches your stamina, dynamic sound to keep you in the zone, and with 40hrs playback, the player offers long time music time for enjoying. internal 8gb memory and an integrated micro sd card slot lets you add even more storage, staying motivated will be a snap. all that plus an fm tuner and large, intuitive color lcd screen for on-the-move navigation make the sport player the perfect workout partner.<br><br> <b>key features:</b><br> 1, music play: music support equalizer,repeat or shuffle mode. free to add your favorite music to playlist.<br> 2, audio book play: continue playing audio from last time you quit. hold on play button 5s to turn on/off.<br> 3, e-book reading: add a bookmark wherever you want, continue your last reading easily.<br> 4, fm radio: a built-in fm tuner lets you listen to your favorite fm radio station.<br> <br><br> <b>file format support:</b><br> audio: mp3/ wav/ ape/ wma/flac file.<br> text: txt file.<br>picture: jpg/jpeg/bmp file.<br> video: 160 x 128 amv file.<br><br> <b>specifications:</b><br> screen: 1.8 inch color screen<br> screen resolution: 128 x 160<br> internal memory: 8gb<br> micro sd card: maximum support 128gb (not included)<br> fm receiving frequency: 87 mhz~108 mhz<br><br> <b>package:</b><br> 1 x ruizu d50 mp3 player<br> 1 x user manual<br> 1 x usb cable<br>1 x earphone<br><br> <b>warranty:<br> ruizu promises 100% customer satisfaction! 12 month <i>free</i> replacement warranty! 30 days <i>money</i> back!</b>