Roku’s latest budget-level 4K media streamer, the Roku Express 4K+. [credit: Roku ] Roku on Tuesday announced its latest 4K media streamer, the Roku Express 4K+. In addition, the streaming-device maker launched a new optional voice-remote upgrade, the Roku Voice Remote Pro, a lightly updated version of its two-in-one Smart Soundbar called the Streambar Pro, […]