Support TF card, U plate MP3 format of music files Built-in ... battery Support HD FM radio 1.Support TF card, U plate MP3 format of music files2.Built-in high capacity ... , MP4, PC, etc have audio output devices5.Support recording, loudspeaker function6.Beautiful voice clear, high fidelity7.Size (cm) 20.5 ... charging line, audio line, back to wear High fidelity Loudspeaker recording Portable Speakers ADS-2