Google Store offers its newly-released 2nd-generation Google Chromecast Streaming Media Player in Black, Lemonade, or Coral for $35 with free shipping. Although that's list price, this is the first store to offer this new model. It features upgraded internals, with 802.11ac 2.4GHz and 5GHz wireless. It attaches to your HDTV's HDMI port and connects to your wireless network to receive streaming online video, music, websites, and more from your smartphone, tablet, or laptop.
Update: Specs corrected.