1.TF card mini speaker with recahrgeable battery 2.Small size, good sound 3.With EQ and repeat function 4.USB data download Function explanation: 1. Music player, allows you to enjoy music anytime, anywhere. 2. This is a modern fashion, the appearance of a unique mini digital audio. 3. The new aluminum diaphragm micro-speaker, clear treble, bass, pure, unique design, the sound quality was even ...