The model 37038 controls up to 4 audio and video devices including TVs, Blu-ray/DVD players, cable/satellite receivers, streaming media players, and soundbars. It supports thousands of devices from major brands with an extensive code library, though it does not work with Roku streaming sticks or Fire TV/sticks. Setup is straightforward with an online video guide and auto-scan technology for quick configuration. Master volume control lets you adjust volume across all connected devices from a single remote.