Hi Rockport4Me!
Please know that many of the buttons on your remote have multiple functions. For example, the Volume button is moved UP/DOWN to adjust volume, and to MUTE the sound, you need to PRESS it in. Pressing it a second time will unmute. For additional assistance, please reach out to Samsung Support at: 1-800-SAMSUNG (ask for Soundbars), available 8AM - 12AM EST, 7 days a week, or Chat with us on Samsung.com
^Tim