16GB large internal memory and up to 128GB expansion- This MP3 can store more high-quality lossless music. And it can be used as a USB drive. which greatly meets your needs for storing songs, videos, audiobooks, so that you can enjoy the fun of music all the time. Wireless Bluetooth 5.2 & Lossless Sound Quality This MP3 player has a built-in Bluetooth 5.2 chip, that can provide more stable connectivity, better compatibility, and easily connecting your distant Bluetooth headphones or Bluetooth speakers. In addition, this MP3 music player has a built-in powerful audio recording, HIFI level sound, clear restoration of a human voice, so it seem to be immersed in the concert scene. HiFi Lossless HD Sound and FM Radio The MP3 player has built-in HiFi lossless HD speakers, supports wireless headphones to play music, and HD sound allows you to enjoy the music feast. Built-in FM radio allows you to listen to your favourite radio stations, plug in wired headphones as an antenna to search for more stations, so you can enjoy MP3 anytime & anywhere. Multifunctional MP3 Player This portable MP3 player is not only a music player, but also has many unexpected functions, a small body inside can also play videos and pictures, and there are recording, FM radio, e-books (only support TXT format) A-B repeat, alarm clock, calendar, folder, built-in speakers, time screensaver and other functions.