Daily Steals offers the Harman Kardon Onyx Studio Bluetooth Speaker in Black for $99.99 with free shipping. That's the lowest total price we could find by $10. It features 60 watts of total system power, two 3" woofers, Bluetooth 3.0, and 60Hz to 20kHz frequency response.
Of note, Daily Steals offers two speakers for $194.99, also with free shipping. That's $97.50 per speaker.