Home Audio Components Harman Kardon Onyx Studio 4 Wireless Portable Speaker $129.99 Audio Components Harman Kardon Onyx Studio 4 Wireless Portable Speaker $129.99 By ARCOM - 23 October 2017 188 0 SHARE Facebook Twitter Go to the deal page: Harman Kardon Onyx Studio 4 Wireless Portable Speaker $129.99