1 .supports Micro SD card2.FM radio built-in(Optional),frequency range:FM:76-108MHZ3.With AUX IN,it's compatible with mp3,mp4,ipod,laptop,CD player and PC,et.4.Excellent tone quality,with wallyson dual channel stereo.5.Dual power supply:rechargeable lithium bettery and USB power6.Battery built-in;    

Warranty:1 year

SP106 mini speaker