Bose S1 Pro System Bluetooth PA Speaker - Battery Included (NIB). The item "Bose S1 Pro System Bluetooth PA Speaker Battery Included (NIB)" is in sale since Sunday, December 15, 2019. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Speakers & Monitors". The seller is "aqueousboi04" and is located in Austin, Texas. This item can be shipped to United States.