Rockville GB1 is a portable PA system with a compact and lightweight design that delivers distortion-free sound even at extreme SPL. It features two 10” woofers and a 1.75" crystal piezo compression horn tweeter for incredibly deep bass and acoustic power. The Rockville GB1 has a 7-channel mixer with channels 1-3 for mono mic/line input and channels 4-5 for mono mic/stereo line input. Channels 6-7 have stereo RCA input/output. The mixer also has a digital sound processor with 16 digital effects, a 5-band graphic equalizer, Bluetooth connectivity, and MP3 playback. The Rockville GB1 comes with two folding speaker stands, two 10ft speaker cables, one microphone with cable, and storage compartments for accessories.