... MP3,Mobile,Ipod,notebook,cd,pc,etc Model CR-321Color rose, pink, blueMateril plasticAmp. frequency response 120Hz-18KHz TrumpetΦ40mm/4Ω Card reader ... speaker 1) functions as FM radio MP3 decoding, capable of directly inserting the Micro SD/TF card for playing music. The mini ... audio box with new concept integral stereo portable mobile music, connecting your MP3, MP4 ...