... with high quality aluminum case, fashional, engrossing,elegant2. support format: MP3, WMA, Double decoding3. support external music broadcast equipment(AUX IN ... disk, convenient and practical6. Five for one-jack, headphones, charger, audio input / output, data transfer, FM antenna to achieve in a ... speaker, music plays on anywhere, anytime, unlimited pleasure TF card & MP3 & bicycle & mini-audio player