As one of its daily deals, Best Buy offers the Sony SRS-XB2 Bluetooth Speaker in Black for an in-cart price of $52.99 with free shipping. That's $25 less than our mention from three weeks ago (although that included a $25 Dell gift card), and the lowest price we could find by $26. It features two 1.7" drivers, NFC, and up to 12 hours of battery life per charge. Deal ends today.