Yes the image doesn't have 1 & 2 on the keys, but if you look hard the blackened extra keys are there. Your remote has RC-AL9 on it, but in the software of the roku its called rc411, had the second remote on that page to your cart and its called rc411 too.
Oh, and remote doesn't communicate by Bluetooth, its Wifi-Direct.
Re: Remote for Roku 4670x stopped working after 4 months, need replacement
No offense or disrespect intended, but always replace the batteries before replacing the remote. Even when I've had new batteries, sometimes the remote freezes. In that case, just taking out the batteries and putting them back into the remote usually unfreezes it.