Enjoy a cinematic sound experience with Dolby Audio. Four internal speakers fill any room with sound. 4K Streaming. Advanced audio engineering with Roku OS. Simple sound settings. Quick and easy setup with everything included in the box. Use headphones for private listening via the remote. Voice remote helps you quickly find content. Roku Mobile app. Compatible with Siri Alexa and Hey Google. Includes: Voice remote. Two AAA batteries. Power cable. High speed HDMI cable. Optical cable. Headphones.