Hi Txngreg, This system can accommodate 1 external device only. There's an AUDIO IN port at the back of the system. Please check the link below for further assistance. https://docs.sony.com/release//CMTSBT100.pdf Thanks, >Joffrey
Sony - 50W bluetooth Micro Music System Model CMTSBT100. When using a USB SanDisk playing music. When you stop playing music, will the unit start playing the music where it stopped?