Home Slickdeals Harman Kardon Onyx Studio 4 Portable Bluetooth Speaker Refurbished $99.99 + Free... Slickdeals Harman Kardon Onyx Studio 4 Portable Bluetooth Speaker Refurbished $99.99 + Free Shipping By ARCOM - 18 December 2018 177 0 SHARE Facebook Twitter Go to the deal page: Harman Kardon Onyx Studio 4 Portable Bluetooth Speaker Refurbished $99.99 + Free Shipping