To answer your question in a word..."Nope." They may claim to do what you think they might do, but cheap ones will not. Now, I am not saying to purchase the most expensive either. You definitely do not want to do that, but all BT adapters
are not the same. This is because a Bluetooth (BT) device can and does do more than you
think it does by a Windows 7 (or otherwise) definition. Most of the time you may not need the drivers disc that came with the BT adapter (incidentally --
did you install the BT drivers (or try to) for the BT device you bought?) because Windows will load the best possible drivers for the third-party BT device that you purchased (in my opinion a BT device is
always third-party unless it is integrated to the motherboard of your notebook, desktop or other peripheral).
In order to find out if a BT adapter will work with your device you need to find out two things...
One...
What are your devices parameters that are needed to allow a solid BT connection between the device and your computer that is running Windows 7. Is the device able to be remotely controlled, and/or is it a hands-free device, and/or is it an audio video device? Obviously you can tell by looking at the BT device what it is ad what it does...
However, Windows is the best judgment of what they device can
truly do and accomplish. Why? Because windows will communicate with the device (via BT, obviously) and install an appropriate BT driver for
each and every function that BT device has. For example, when I connected my Plantronics BT hands-free headset, Windows saw that this device can act like and use these services: Audio Sink, Handsfree Telephony, Headset, Remote Control, Remotely Controllable Device. Each one of these requires a specific driver so that Windows can help you operate it successfully. Good products will and should give you the BT parameters of the said device warranting your connection to your computer on their websites, if not within the documentation that came with the device.
Two...
Before you purchase any third-party USB BT dongle make sure (so you are not wasting good money) that it is the device can handle the latest BT version out on the market today. The latest is BT v4/4.1. This version is known as Smart BT. Which is the one you should be using and you should not have any trouble with connecting your devices and having them stay connected.
Check out this article
What is the difference between Bluetooth 4.0, 3.0 and 2.0 ... or this one
Bluetooth 4.0 Becomes 'Smart': What It Means For You ... to find out more information...
This is the Nano USB dongle you should be putting your money into
Bolse® Bluetooth 4.0 (Latest Version) USB Adapter. Now I am not saying to get this one. This is the one that just came up first when I did a quick Google search. Especially when it comes to BT 4.0. Some are cheaper and some more expensive. They all relatively are between $8 ~ $20 nowaday. I paid $25 for mine, but that was 3 ~ 4 years ago. Prices have dropped sharply since they are in high demand.
Hope this helps and Happy Holidays!