So.
Wiim Pro consumes 1.7W in standby mode and the same amount when turned on. It does not make sense. There is a Bluetooth remote control that can turn on the device.
I have a Mecool KM2 streamer (connected to the network via RJ-45) with a Bluetooth remote control, which draws 3W during operation and 0.2W in standby mode.
Based on this, I conclude that it is possible to design a device that is economical. We don't listen to music 24 hours a day.