Unfortunately, this is not possible according to the operating instructions.

Unfortunately the "Revo Supersignal (Walnut & Black, DAB+, Bluetooth)" can no longer be delivered as It has been sold out and cannot be reordered anymore.

The big part on top is just the volume control. The on/off button is not so big. But the remote control is also suitable for older people because the buttons are big and I mostly use the remote control to switch on and off.

When you are on the product overview, there is a section called "Specifications". If you click on "Show more" and scroll down, you will see the dimensions under "Product dimensions" ;)