Besides CDs, the Pioneer X-PM12 mini system can also play music from your smartphone or MP3 player. Via Bluetooth, you can set up a wireless connection with your music player to stream your favorite songs. MP3 players without Bluetooth can easily be connected via an AUX cable. Whatever the source of the music, the speakers will always make it sound full and clear. The speakers have a passive bass radiator that reinforces the low tones. You can control the Pioneer mini system with the included remote or the buttons on the casing.