Groupon offers the Bang & Olufsen BeoPlay S3 Bluetooth Speaker in White or Black for $139.99. Coupon code "SAVES" cuts that to $118.99. With free shipping, that's $21 under last week's mention and the lowest total price we've seen. (It's the best deal today by $8.) It features Bluetooth 4.0, a 4" woofer, and 0.75" tweeter. Deal ends October 20.