Crutchfield offers the Sonos Play:1 Wireless Speaker in Black or White for $199. Add two to your cart and the price drops to $348. (Amazon and Sonos charge the same.) With free shipping, that's the lowest price we could find by $50. (For further comparison, we saw a single speaker for $180 shipped last month.) This humidity-resistant speaker features a frequency response of 100Hz to 20kHz, Ethernet port, and wall mount.