Phonic Sound Ambassador 75 Deluxe-UM30-D All-in-one portable sound system with retractable trolley and wheels 10" 2-way active speaker system (75 Watts @ 4 ohms) Built-in 16-channel UHF wireless handheld microphone, model number UM30 (1x HT-100 transmitter and 1x UM-R10 receiver) Built-in anti-shock CD Player with MP3 playback One XLR and one 1/4" phone jack for wired microphone input