>>>Are they reliable? If two people share an office and both have wireless mouse, can one interfere with another?
>>>
>>>
>>>Thank you.
>>
>>I use an MS Intellipoint wireless mouse and it works great. It has the wheel (which now allows side-to-side scrolling as well as up-down) and two programmable buttons. I haven't run into any interference, and the base unit has several channels that can be selected.
>>
>>HTH,
>
>Thank you for your input. You said "base unit". Is it something you plug in the USB port of the PC (in my case it would be a notebook) or it is permanently installed in the PC/Notebook?

Yes, the base unit is a small device that is plugged in to the USB port. It is about the size of a standard mouse and has a single button on top that is used for selecting the broadcast channel.