The Tascam CD-400U is a 1 RU CD/SD/USB player with Bluetooth and AM/FM radio designed to provide versatile media playback and recording for educators, system installers, A/V technicians, and audio engineers in schools, concert venues, houses of worship, and stores. Its CD player supports standard CD, CD-R, and CD-RW disc types and the built-in Bluetooth receiver allows wireless playback of music from mobile devices. Play MP3, WMA, AAC, and WAV files via an SD/SDHC card or USB flash drive or patch your preferred audio playback device into the 3.5mm aux input. Utilize the included antennas for the AM/FM radio as an alternative to your personal music library.