hsini Portable Mini Music SD USB Speaker for PC Mobile Phone MP3 Player - Retail Packaging - Blue This mini speaker has compact size and light weight. With 3.5mm audio plug and Micro SD slot, it can be connected with MP3, MP4, Phones, iPhone, iPad, iPod, and PC, to play music. With KD-MN02 TF Card, HSINI speaker with FM USB disc, Micro SD card support Music player allows you to enjoy music anytime anywhere. The appearance of the speaker is an unique mini digital audio. The new aluminum diaphragm micro-speaker, clear, treble, bass, pure, unique design, the sound quality was even better.