Logitech MX Keys Advanced Wireless Keyboard

I've had this keyboard for almost three years and use it with an MX mouse on a single USB receiver. It's everything I wanted in a keyboard-mouse pair: single USB, long battery life, backlit keys, nice look and feel. However, I seem to have one of the defective units (if there is such a thing). I have what a few other owners have reported - every now and then there's a connectivity issue over the wi-fi. I believe this is due to a transmission storm from the keyboard; I notice it mainly when my mouse becomes non-responsive. This lasts for a few seconds and then my mouse cursor begins to track again. I know it's the keyboard because when this starts, I can turn off the keyboard power, and the mouse function immediately returns. I don't know what causes this keyboard behavior - it could be a defective unit or its interaction with my wi-fi router on my desk, but I have learned to live with it. I do recommend the product and would probably purchase another - as I said, it has everything that I want. But if you experience this connectivity issue, you should return the product within your return window and request a replacement. I waited too long but it's not enough of a nuisance to purchase a replacement keyboard.