Can I Control the Soundbar with TV Remote?

Yes, you can do it as follows:

Please connect the Soundbar and TV with an HDMI cable, and turn on the CEC function, then you can control your TV and soundbar volume and power on/off with the TV remote control.

If you want to control the soundbar volume and power on/off through the Firestick's remote control, follow these steps to connect:
Step 1: Connect the Firestick to the HDMI IN port on your TV.
Step 2: Connect the soundbar to the HDMI ARC/eARC port on your TV.
Please refer to the video: Control Operation video

If you need further assistance, please contact support@ultimea.com, and we will service you ASAP!