B&H Photo Video offers the Roku 4 4K Wireless Streaming Media Player for $79.99 with free shipping. (Groupon and LivingSocial charge the same.) That's the lowest price we could find by $10, although we saw a refurb for $30 less in September. It streams 4K HD content from Netflix, Amazon Video On Demand, Pandora, Flickr, and other media apps. It features 802.11ac dual-band wireless, USB, voice control, lost remote feature, and HDMI.