The portable radio with MP3 player Trevi DR 740 SD is an original speaker to listen to mp3 music from SD Secure Digital Flash Memory Card<br><br>Compact and lightweight, take it with you and where you want to connect your Micro Sd to amplify the sound and listen to all your favorite music in MP3 format.<br><br>The Trevi SD 740 SD also has an FM radio receiver SCAN with manual or automatic search for watching your favorite radio programs. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-036-6173, indicating validated use in U.S. government and defense logistics supply chains.