Bluetooth technology has come a long way since the first consumer Bluetooth device was launched in 1999. You can read about it on the Wikipedia page dedicated to it. Since then, Bluetooth devices have become quite ubiquitous in modern society. In fact, you may not be aware of which devices use Bluetooth technology and which ones don’t.
Despite what you may have read, most wireless mice and keyboards use a radio frequency. How can you tell? If a wireless mouse requires a specific dongle, it’s RF. If it doesn’t, it uses Bluetooth.
I have a dongle in a USB port on the right side of my laptop computer. I have a Bluetooth adapter in a USB port on the left side of my computer. The Bluetooth adapter connects to devices other than a mouse. I buy mice that use a single battery and that battery tends to last six months or more.
My older son, Joe, bought me a Bluetooth headset for one special occasion or another when Josie (my wife) and I were in Florida. I really don’t remember whether it was my birthday or Christmas. I only used it a few times before Josie and I traveled from Florida to Hawaii. Here in Hawaii, I bought an expensive wireless earbud device (both ends connected by a wire) and I’ve only used it a few times so far.
What I normally use is the regular earbuds that came with my Samsung Galaxy S10e. I use them on both my phone and my laptop computer, but not often. I tend to use them on my laptop computer more often than my phone, especially when I don’t want to disturb anyone else. The wireless headset and earbuds will eventually come in handy in places where wires will interfere with whatever I’m doing.
When Josie, Cathy (our daughter-in-law) were last in the Philippines, Cathy bought me an inexpensive Bluetooth speaker for some special occasion. The volume was fine, but it had to be plugged in. Before Josie and I left Florida, Joe gave us a smaller speaker which could be charged. Josie put in a balikbayan box so it would be in the Philippines long before we return.
I bought an even smaller, chargeable Bluetooth speaker to use while still here. It’s small enough that it won’t take up much space in a carry-on bag when I fly out of this place. I use it when our family wants to listen to music during one occasion or another. The music is on my cell phone but Cathy sometimes uses the speaker to listen to music from Spotify.
I’m sure there are other Bluetooth devices I haven’t mentioned. I can’t mention what I don’t know about and what I have no experience with. Although I know files can be transferred using Bluetooth, I only have experience doing it over Wi-Fi.