The built-in Fitness Audio wireless receiver allows to use a dry Fitness Audio body pack transmitter and E mic or Aeromic headset or handheld transmitter for lecturing, making announcements, or multimedia presentations.  The Stage Pro covers all of your music needs for fitness - with optional built-in Bluetooth music streaming, CD/MP3 USB player with pitch control and remote, and additional audio inputs to direct wire any line ready audio source. Optional travel bag, tilt & roll travel bag, and tripod stand.