... 2,use:MP3, MP4, CD, laptops and sound 3,color:red Pockets speakers(speaker bag,canvas bag)1,material:waterproof nylon2 ... ,use:MP3, MP4, CD, laptops and sound3,color:red。It is a speaker, MP3 inline speaker box package. Convenient ... equipment, make its sound loud and clear. Don't need headphones, you can at any time, any place enjoy music.