The on / off switch on the device is missing, ie it is always in Standby mode except one accuses the plug from the socket. The machine hums a bit noisy both in standby mode and the operating mode. If one pulls the plug, the sound is of course over, but also all of the settings (volume, programmed radio stations, etc.) are deleted. So far I have used the device only in the garden, because I have not noticed these shortcomings. Recently, I have but it in the house in use and now I'm going to send it back
