Harman Kardon offers its Harman Kardon Omni 10 Plus Bluetooth Speaker in Black for $79.95 with free shipping. That's the lowest price we could find by $170. Features: Bluetooth & WiFi 52Hz to 20kHz frequency response 90mm woofer & 19mm tweeter Spotify & Chromecast compatibility Note: This item is expected to ship April 22, but can be ordered at this price now.