DROK® Computer Speakers Headphones Audio Switch Converter Volume Control, Speaker Switching Device for Switching Back and Forth Between Computer Audio and Headphones with 5 Feet Cable

I gave this a 5 in spite of having poor documentation.It looks exactly like the pictures. It feels heavy (won't move on the desk), and the housing is thick metal. The knob is nice. All the default functions seemed to work plug and play out of the box on Windows. (I didn't try Mac or Linux.) It comes with a little flyer explaining the base functions in poorly worded English, but it's ok. It has a USB-A to USB-C cord that's long enough for most desks.It's easy to program, but there's no directions for doing so. I found out by reading other reviews and checking the "FAQ" on the Drok site.1. Start with knob unplugged2. Open Notepad3. Press knob down and hold4. Plug knob in.5. TURN KNOB (I had to turn the knob, or nothing happened)6. Notepad will display text and options7. Use the knob to move up and down through the menu, and push to select.8. You don't need a modifier, unless you are using a combination of keys like [ctrl.]+[x]9. Options include keyboard keys, mouse functions, and others.10. SaveIf you are very uncomfortable with computer and technical things it will probably be confusing, but it's really well done. When you are programming the dial will switch apps if you select the desktop - just click on the Notepad window to correct. I programmed it to scroll pages up and down, press once for mouse click, when you press it it still does volume, and pause/start with a long click. It scrolls both pages and text windows fine.

I have two nice PreSonus Eris E-8XT powered speakers for my PC audio. I use the USB out of the PC to a Topping D10 USB-to-balanced analog audio converter, then TRS cables from that to the speakers. I run at 384 PCM and am very happy with the sound. A big problem was adjusting adio levels - level contols on the speakers are on the rear and PC level controls in my dimly lit room are on a black keyboard. Even then I have to hunt for the keys. This USB volume control has been wonderful and works like it should. I bought a heavy black knob to replace the silver one that come with it - looks great and it's perfect to simply reach and adjust. It has a blue LED under the knob I keep on to easily see the knob. Only thing I wish would be a SINGLE DIGIT VOLUME ADJUST instead of the two per detent it has now. These speakers are powerful so I tend to make changes within the 1 to 10 scale instead of 1 to 100. It has a lot of capabiliy I have not used yet except for selecting the finest adjustment per click - which as stated isn't quite enough. But it has a LOT of features!

Update on July 19, 2018 - 3+ months later: I use this usb control knob everyday and it works great in adjusting sound running via my PC. I work with video editing with 3 monitors and also watch lots of YouTube videos. Every one of them varies in sound levels, so this knob allows fast changes in volume levels without hunting for the mouse to adjust controls on the PC or use a remote. If I get a call, rather than hunt for the mouse, just one swift tap shuts off existing PC sound to hear the phone. It would be nice if it was wireless, so I don't have to deal with the rather short cord. They need to provide a longer cord or make it wireless or have that as an extra cost option. The weight of the device is heavy enough to keep it fairly stable and not slide around. They should also provide some means to attach it to the side or under a desk, but hook and loop fastener tape would probably work also. Now if they could add a USB controlled second button to stop and start YouTube videos, that would be even better.Here is my original post:I just got this today, Apr. 6, 2018 and it is GREAT. Before, when playing YouTube music, or Amazon movies, or Plex TV recordings via an over the air capture device like HDHomerun, the volumes put out to my external speakers varied by source. Sometimes I had to adjust both the Windows 10 volume AND the YouTube volume or when I used headphones, they have to be turned way up using the Win 10 slider. That is inconvenient because I work in an enclosed porch where you can still rain and if heavy I have to switch to headphones, which is a pain. This adjusts them all. Now I don't have to use the mouse or cursor to adjust volume, but just this knob. It takes more turning to adjust volume when left as is, but if you press the knob and turn, the volume is adjusted much faster. And, if you just press and release the knob, it switches between on and mute. WONDERFUL. I have tried a couple cheaper kludgy devices, and almost bought an entire new speaker system with a remote knob, but this does what I want. The price is kinda steep for just an apparent rotating knob, but most others on the market are all in the same range. I ordered a different one fulfilled by Amazon, and for the first time ever, USPS lost it, so Amazon let me cancel it because they had no replacement.Here is what I tested so far:- YouTube video music - adjusted sound like described above.- Switched to a TV show recorded on a Plex Server, and it could not be heard. By turning the knob in fast mode, it immediately ramped up the sound to the level I wanted.- Switched to live OTA TV over HD Homerun and it was really loud... used fast mode and turned it down very quickly.- Switched to an MP4 video I recorded last night, and it was about the same at the OTA level, but it could be adjusted.- Tried to plug in my headphones, but the system is a custom build with ASUS motherboard and it wants to use onboard audio which is apparently a different source. I have to figure that out before I come back to explain how it works with headphones. Audio signal differences are a black art and very confusing to this user. The black base measures about 3" x 3.25" x 2.25" high (with knob). I have it sitting on a LARGE mouse pad so it doesn't slide around. There is no need for a picture since it looks just like the ones in the description.If I encounter issues later, I will return and update it.VJ in Florida Apr. 6, 2018

After reading a review that someone used this knob with SDR i decided to get one, Been using the Flex Knob with Thetis but its a bit wonky to get going, this is so much simpler, it doesnt have ALL the advanced features the Flex knob has but its dead simple to set up.There are no instructions per say in the package , watch the video on the amazon site on how to set up before you decide what is best for you,It probably has over 150 fucntions/shortcuts and numbers that can be programmed. Thanks to the comment from a customer that left feed back , it made me look closer as to what it can actually do.

I personally like that the button is on the larger side (about 2 3/4" in diameter).The wires seem of decent gauge, not flimsy.I also really like that when you turn the knob, you feel the notches. There are about 40 of them on the whole range.But what bugs me a little is that the volume increase is not linear through the range of turn. It feels like the 20 middle notches barely vary the volume at all. Just as an estimate, it feels like about the first 50% of the volume range happens through the first 10 or so notches. And the second half of the volume range through the last 10 notches or so. Roughly. So it's not as accurate as it could potentially be.So a little disappointing because of that, but still the quality of construction seems to be there, so not a bad purchase.

Very good worth the money

While the overall unit is solid, the actual knob & software is rather poor.Plastic knob cheap.

Worked like a charm. Just quite expensive.