Best Buy offers the Sony Portable Bluetooth Speaker in Black (pictured), model no. SRSX55, for the in-cart price of $107.99 with free shipping. That's the lowest total price we could find by $70. It features 30 watts of peak power handling, 4-ohm impedance, frequency response of 60Hz to 20kHz, speakerphone utility, USB, and 10 hours of battery life.

Also available, as one of its daily deals, is the Sony Portable WiFi Bluetooth Speaker, model no. SRSX77, for $159.99 with free shipping. That's tied with our April mention and the lowest total price we could find now by $75. It features 40 watts of peak power handling, a frequency response of 50Hz to 22kHz, and 802.11n wireless. Deal ends today.