Groupon offers the Sonos Play:1 Wireless Speaker in Black, model no. PLAY1BLK, or White, model no. PLAY1-W, for $189.99. Coupon code "EXTRA15" knocks it to $161.49. With free shipping, that's $9 under our December mention, the lowest total price we've seen, and a current best by $38. This humidity-resistant speaker features a frequency response of 100Hz to 20kHz, Ethernet port, and wall mount. Deal ends February 10.