... 3.Support TF card and USB flash disk 4.USB 2.0 Mini audio speakersDetail products descriptionMain Features1 computer speaker,also for mobile ... phone, mp3,mp4,audio player2 Easy charging-can be automatically charged by USB wireColors AvailableGreen, Blue, Red, ... easy to carry4, Material: Pure ABS+ metal loudspeaker net USB 2.0 mini audio speakers with cheap price for promotion!