Audio Switcher 3.5mm, 4 Port Splitter Box (1 In 4 Out/ 4 In 1 Out) Headphone Manual Selector 3.5mm Stereo Audio Converter AB Switcher Audio Sharing Compatible with various earphones and speakers, etc.

I have a work computer MacBook Pro (15-inch, 2019), and a personal computer (MSI GL63 8RE), and a PS4. I decided that I wanted to route all 3 devices audio to come out of my external speakers. When I plugged in all 3, for whatever reason, the audio from the macbook will bleed through and I can hear it on my other devices. Basically, if I have a setup like:port A: macbookport B: pcport C: ps4port D: nothingIf the selection knob is set to A, all I hear is the macbook. If I switch to B, then the audio of the macbook is reduced by about half, and I can hear the macbook audio mixing in with my PC audio. I checked the macbook to make sure that the audio didn't just switch to external speakers... It didn't. I 100% confirmed by physically cutting power off my speakers, and all the audio disappeared. I then turned the speakers back on, and I can hear my PC audio, but also the mac audio bleeding through.I can also hear the macbook audio bleeding through when switch to C where my PS4 is.and I can also try changing aroud what ports my devices are connected to, and same problem.I'm not sure if I just got a defective device or not but... that's the audio bleed through issue I had. Maybe the macbook audio just has a higher voltage or something and it ends up interfering with other devices? I didn't experience bleed through with my PC and PS4 alone. It's only when I connected the mac sadly.Anyways, everything else about the device is really awesome. If it weren't for the bleed through issue I'm having with the mac, then I'd keep this device. But this bleed through makes it unusable for me so... I'm returning it.

Needed this as I swap a few monitors around between my Xbox Series X, desktop, and work laptop and need audio from different inputs to my one set of speakers. Once I tinkered a little (setup below) I was able to get it to work fine; no audio bleeding or static luckily, granted its been a day.Volume is a little lower on the knob, but I can just turn up my speakers or the input and it's fine.Single Output - Klipsh Pro Media 2.1Input A - Desktop via motherboard's audio outInput B - Speaker Out from 4K MonitorOther notes:XBoxSX is connected via HDMI to 4K monitor as there are not audio specific outputs on the console.Desktop is connected via DP to 4K monitor also. I am getting around the audio issue if I am using my XBox but want to stream a show with audio on the side by using Input A directly (as none of my monitors have built-in speakers for them).Can also confirm that at initial testing, I am not getting audio bleed from multiple sources playing at the same time (tested desktop, XSX, and cell phone connected to Input C simultaneously.All in all - is this my ideal setup? Not at all to no fault of this product. But this gets around me needing to invest in a receiver or something crazy for my desk. Very happy with the purchase!

Got this back in December 2020 and as of July 2021 I can no longer use it. I have 2 PCs that share speakers, so being able to swap with a simple button press when I turn one off to move to the other was incredibly tantalizing. The first month I had the device it seemed to do the trick, with a built in volume control and mute button it did even more than I needed. However now, just after half a year, I can't reliably use it. There is a persistent 'buzz' in the background of any audio (games, music, etc.) and it's even audible, though quieter, when nothing is playing and the speaker is simply on. If I unplug one of the sources/PCs the buzz immediately cuts out and it sounds perfect, so there is something going on in the box that creates a bit of feedback. Might be able to use it as a volume control for something else, but I can't recommend it for it's intended purpose...

Ahhh, lovely COVID... how you have changed all of our lives... After a year and a half of working from home with a home computer and work computer attempting to share one set of speakers, I decided to make things a bit easier. Man, I wish I new about this inexpensive little device sooner! It's simple, plug the audio cables from two devices into one side and the single speaker cable to the other side. You now have the ability to easily switch between devices on the fly. No more crawling under the desk to change the speaker cable from one computer to the other. Also, great build quality and a plug-and-play setup. Definitely recommend!

I have four separate systems and one set of speakers at my desk (an XP machine for old games, a Win 7 machine for everyday, a Win 10 for work and a laptop). This thing is awesome! I can now enjoy full stereo sound with having to unplug and plus extension wires. Super easy to set up and looks great, I really like the all metal body and small form factor. Well done guys, this switch is fantastic!

Switches one line-level output to two different devices. One device requires a reduced signal level and this box provides the needed attenuation reliably. The included cable is a nice bonus. Also important, does not contribute any AC hum to the signal. Would buy again if need a second one.

My Sony TV is not Blue tooth so but it does have a 3.5mm audio and I just bought a Klipsch Promedia 2.1 that is 3.5 mm audio. I bought a logitech Bluetooth adator to connect my phone or Alexa to connect to this box. Wow no static and my Klipsch are 250 watts did I say wow. This box works perfectly.

Makes switching between computer real easy. As a ham radio operator, I find it useful to be able to use multiple computers with a single monitor. I can watch a movie or video while the other computer runs other programs, switching the video while still listening to the audio. Also allows me to have only one audio system.