A:Answerwell, nothing is absolutely quiet if it is mechanical in any way. But, it does appear to be more quite than my previous mouse, which was not the worst product.
A:AnswerMost input-based peripherals shouldn't clash with each other. Whether or not this mouse works with that keyboard is not an issue you'll come across often.
As for connectivity, if your computer has a USB port, you should be able to plug your mouse in, and forget about it.
A:AnswerI believe it comes with a 1 year manufacturer warranty but I have always found Best Buy customer service to be excellent. I suggest going to the store and talking to them and seeing if something can be worked out.
A:AnswerHello John, Yes, you can use the Bluetooth in your laptop to use with the M650 L. Here's a link to the Getting Started PDF that will walk you through the setup: https://support.logi.com/hc/en-us/articles/4414458320663-Getting-Started-Signature-650L. - Richard from Logitech