The Pioneer DEH-6400BT in-dash receiver is a stereo receiver that provides multisource playback and is designed for use in vehicles. The Pioneer unit is a CD/MP3 in-dash receiver that combines memory card-based media, disc-based media, digital media, and radio frequency playback options. This Pioneer in-dash receiver holds a disc drive for playing disc-based media such as music CDs as well as an AM and FM radio tuner for receiving radio transmissions. It also includes an iPod connection for digital file playback via an iPod or other compatible MP3-enabled devices. An SD card slot, USB port, and auxiliary input offer more playback options. The Pioneer DEH-6400BT in-dash receiver can switch between the sources at any given point, providing a diverse listening experience. Up to 24 channels can be preset in the tuner memory. The disc-based playback options in the CD/MP3 in-dash receiver include multiple format options such as standard CD, CDR, CDRW, and MP3 CD. The Pioneer in-dash receiver is FAT16/32-compatible for digital media with decoding for MP3, WMA, and AAC files. The Pioneer in-dash receiver measures 7.25 inches wide by 4.5 inches high by 6.25 inches deep.