Costco Sale: Bose SoundDock 10 Bluetooth Speaker $399.99 by Rhonda July 24, 2020 Costco has the Bose SoundDock 10 Bluetooth Speaker on sale for $399.99 (after manufacturer’s instant rebate), now through June 17, 2014. That is $100 off Costco’s regular price of $499.99. Features:… 0 FacebookTwitterPinterestEmail