• Transmission rate: Bluetooth adapter supports maximum transfer rate up to 3Mbps and transmission distance up to 33ft/10M in open space.
  • Designed for Windows. Plug and play for Windows 8/10 system. Driver only needed when your windows 7 and lower system need to connect Audio device, but connect Mouse, keyboard and cell phone no need to install driver
  • High compatibility: support 32bit/64bit Win 10/8/7/ Vista and XP, enables PC or laptop to connect Bluetooth-enabled devices, like smartphones, Mouse, speakers, headsets. Not work with Mac OS, car stereo systems or TVs
  • Low energy: USB Bluetooth dongle applies the latest Bluetooth 4.0 with low energy (BLE) technology and it is backward compatible with Bluetooth V3.0/2.1/2.0/1.1
  • Extremely small: small size allows you to leave it on laptop or PC, no need to remove, it seamlessly gets plugged into a computer/laptop without blocking surrounding USB ports, save space

I had an older one that didn't work with newer BT devices (wireless keyboard, xbox one s controller), and replaced it with this. Truly plug and play with Windows 10. No drivers needed. Connection to the Xbox controller took 2 tries but since then, it's working great. No lag at all. Let's just hope this lasts a year+ as some reviews suggest it will die after a few weeks to months... finger's crossed!

Edit: First one they sent me had lots of issues- latency, stuttering, bad range. Just all around funky. They sent a new one to me and it works way better. Can actually pair properly, has range and doesn't have the stuttering problem from before. Maybe I just got a bad first try.

Purchased the Zexmte Bluetooth USB Adapter CSR 4.0 USB Dongle because we have one older laptop that has no Bluetooth and one new unit that has an intermittent internal Bluetooth card. This adapter worked on both Windows 10 laptops with no need for the driver CD. Installation in the laptop with no Bluetooth was a simple plug-and-play operation. Windows 10 did the rest. On the other system, we had to disable the intermittent Bluetooth device in Device Manager before plugging this adapter in the USB port. Once we did that the laptop was up and running Bluetooth in less time than it took to read this. Like the adapter so well we ordered another one as a backup for traveling. PROS • Price • Simple plug-and-play installation in Windows 10. (Can’t say how it works in Windows 7 because all our laptops are running Windows10) CONS • Wish dongle had a lower profile. Good product for the price. Recommend you consider this product if you have a need for Bluetooth USB dongle. This product was not provided as a sample for this review, so none of these comments are influenced in any way by the seller.

I bought this to pair with my Logitech K380 keyboard to the computers in the computer lab at school and it works perfectly. The computers run Windows 10, which allows for plug and play bluetooth without the need to install drivers. I plugged the dongle into the computer and went to settings and paired my keyboard just like if the computer had its own bluetooth. If you don't have a Windows 10 computer, you might need to install drivers, but this dongle comes with an 80mm disc with drivers in case you need them. The dongle is also small, but not too small. Logitech's unifying receivers are really small and difficult to remove from a computer. In my case, where I plug the dongle into a public computer, I need to be able to unplug it without issue. This dongle is large enough to allow me to unplug it easily. If I had to choose anything negative about this, it's that the blue status light gets annoying quick. It blinks to let you know it's broadcasting bluetooth, meaning there's no doubt whether or not it's working, but it never stops blinking, which I imagine can get annoying quick when it's on a laptop in a dark room. Other than that, this dongle is great. I haven't noticed any drop in connection compared to a 2.4 Ghz wireless connection, which can get interference from other wireless connections. That being said, I don't think anyone else in the lab is using a bluetooth computer, so I am in an optimal environment.

This adapter is excellent. I am using Windows 10 and it was completely plug and play. I have paired the device with my headset and my cell phone and both times it simply required me to click on the blue tooth Icon and add a device. I am able to listen to music online from my laptop as I move about in my house. I am very satisfied with this device.

I bought this Bluetooth device 5 months ago. It was easy to set up; upon plugging it in, Windows 10 automatically downloaded the drivers. It scanned and found my Bluetooth receiver plugged into my Bose radio's AUX jack; and the audio was excellent playing CD's and MP3's from my desktop computer. I had not used it for the past few months and now the computer acts like it does not exist. I can see the unit if in the "Devices and Printers" screen in Win 10 but it does not appear in the Device Manager list unless I select the "Show hidden devices" from the View menu. Trying to update the driver and run the Windows BT Troubleshooter did not work. Finally, I plugged the unit into my laptop and it didn't work there either; which indicated it was toast. The only good thing about it was that it was inexpensive and I did not lose more $. UPDATE: I changed the review to 5 stars due to the excellent customer service; after reading the above review, they immediately sent me a new unit. Unfortunately, this unit did not work with my computer either, BUT: this tells me that I might have an issue with my USB ports and it might not be the fault of the product. I also had a problem with my web cam and it took considerable fiddling with my computer's USB drivers to get it to work - I suspect a recent MS Win 10 update might be the culprit. The sad reality is that not ALL external devices will work with ALL computers and operating systems. I certainly can't blame it on this seller, who at least tried to do the right thing. The unit did operate flawlessly prior to to OS update. If you buy it and it doesn't work, let them know and they either replace or refund.

I purchased this because my old Bluetooth dongle was almost falling apart, and I wanted to replace it before it broke completely. I don't use bluetooth for speakers or other audio output. I used this for my Dualshock 4 controllers and my Nintendo switch controllers. Both will pair normally and are recognized by windows. DS4W works as well to make them appear as xbox controllers for applications that don't support Dualshock controllers

Plug and play (Windows 10 on older Vaio Laptop) - worked instantly with no need to install drivers or software. Appeared in Control Panel and recognized and connected to several 'local' Bluetooth devices (mouse, sound bar) without a problem. The Vaio's Bluetooth capabilities had permanently failed after many attempts to re-install... so this 'dongle' was the perfect solution. Great price, solved a problem, highly recommend.

I'm not sure if it's the fact that I'm using Windows 7 or not so I'm going to be taking any stars away. I use this on my work computer, which will sometimes switch to the other Bluetooth option when I walk far enough away for it to disconnect, which immediately makes the audio quality tank to barely above Indian call center hold music (again could be because of the windows 7 computer). Overall really good distance (goes about 15-20 feet away). Sound quality is dependant on your headset. I don't believe it has fileshare because I wasn't able to transfer a pic from my phone to the computer, but I use it strictly so I don't kill my battery on my phone listening to music while at work.

Great product at a great price. Super smooth installation on Windows 10 64-bit laptop. I plugged it in and Windows 10 instantly recognized the device and loaded drivers. Using the little Bluetooth icon that appeared in the tray, I easily connected to Bluetooth speakers. Folks with an older OS may need to download drivers and/or use the mini-disc in the package but that was completely unnecessary in my case. Could not be happier. You can spend more but I do not see how you could get a better or easier to use device for this purpose.