Harman Kardon offers its refurbished Harman Kardon Omni 10 Plus Wireless Bluetooth Speaker in White or Black for $69.95 with free shipping. That's $180 under the lowest price we could find for a new unit, although we saw it for $10 less two weeks ago. It features: Bluetooth & WiFi 52Hz to 20kHz frequency response 90mm woofer & 19mm tweeter Spotify & Chromecast compatibility Note: A 1-year Harman Kardon warranty applies.