For IPOD Speaker SD cards, AUX 3 modes -1.Can be used as IPOD device Speaker -2.Support SD cards, IPOD, AUX three modes playin For IPOD Speaker SD cards, AUX 3 modes Features: 1. AUX function, standard 3.5mm audio interface, Support SD cards, IPOD, AUX three modes playing, playing priority IPOD>AUX> SD Card2. 2.1 sound channel and high-fidelity sound effects to meet your musical taste3. 64 levels ...