Sound great anywhere with the ultra-portable Bose S1 Pro Multi-Position PA system. Designed for musicians, DJs, and general PA use, the S1 Pro is the ultimate all-in-one PA, floor monitor, practice amplifier and primary music system. Multiple positions, supported by Auto EQ, ensure that you always sound your best. And with a 3-channel mixer, reverb, Bluetooth® streaming and ToneMatch® processing onboard, the S1 Pro is ready to be your go-anywhere PA.