A:AnswerThe fact that Logitech is avoiding answering this question and doesn't mention anything about the switches in any of the literature is a pretty good indication it's the same designed to fail switches as before.
A:AnswerHello, the ERGO M575 does not have a multi device switch on it, but you can use it with two devices, one via BT and the other via USB dongle. There is a BT button located on the bottom of the unit.