4 Channel Stereo Audio Mixer CX400 Metal Shell Support 6.35mm Input and Output Mini Passive Stereo Mixer with Separate Volume Controls (6.35mm 4 Channel with RGB light)

I love this little mixer. It suits on my computer desk and takes input from my 2 laptops and a Bluetooth receiver so I can run my phone and tablet audio through. No noise, nice sturdy control knobs and visual appearance. It takes up hardly any space on my desk. I would definitely recommend to someone who was after such a device. This is so I well make I can see it outlasting me.

Superb little unit. Exactly what I needed - no frills, no fuss, just simple, clean and quiet. Built like a tank too - was rather expecting it to be flimsy but it's chunky like a Boss pedal. Definitely recommended.

Bought to submix drum machine individual outs into compressor and does the job very well in a small package. Had tried passive merging but that produced distortion from to the device, but this little mixer does the job perfectly. Only one issue is that there’s no mono switch for the main bus, only for the inputs, but it is still great for my use. Not noticed any noise, but not tested thoroughly yet. Hopefully it will last - appears solidly built and is great value for money.

Works as expected. Surprised at quality for the cost. Recommend for small home set-up.

I was a bit sceptical for the price however I'm blown away with the quality of this. Feels to be made from metal - feels solid and has a heavy weight to it. All the switches and dials seem solid and there's good resistance on all the jack inputs. Not noticed any noise or loss of audio coming from this Powers from a usb c cable, (included) either from a USB c port or the included mains USB plug. Also comes with a 3.5.. to 3.65mm (standard jack) adapter AND a decent quality short 3.65 to 3.65mm patch cable. If you're looking for simply just blending audio outputs together then I think you'd struggle to find something much better anywhere near this price point. Only used it a few hours but I can't find a single negative

Very good product. It's like a mini mixer.

I recently picked up the LiNKFOR 4‑Channel Compact Audio Mixer and overall, it’s a decent bit of kit with a few quirks worth mentioning. The product arrived very well packaged, and the initial setup was extremely straightforward — plug in the power, connect your inputs, and you’re basically ready to go. However, I did notice a couple of issues with the included accessories. The listing mentioned a 3.5mm‑to‑6.35mm adapter, but what arrived was actually the opposite. On top of that, the included audio cable was a 6.35mm cable rather than the 3.5mm one described. Not a deal‑breaker, but definitely something buyers should be aware of. In terms of performance, the mixer itself delivers very clear audio and the individual volume controls are responsive and easy to work with. The metal build feels sturdy and reliable, which is great for the price. My main reason for buying it was to combine my Xbox and PC audio into a single pair of headphones. While it technically works, I ran into an annoying buzzing sound during use. After revisiting the product description, I realised that a grounding device is actually required to eliminate this noise something that isn’t made very obvious upfront. I ended up having to purchase the grounding device separately, which added to the overall cost. Even after resolving the grounding issue, I still occasionally hear a popping sound. It’s not constant, but it’s noticeable enough to mention for anyone planning a similar setup. In summary: a compact, clear‑sounding mixer that does the job, but be prepared for a couple of unexpected cable mismatches, the need for additional grounding equipment, and the possibility of some minor audio artefacts depending on your setup.

I'm somewhat an audiophile and have some high end speakers for listening and mixing/mastering and am concerned about background noise in my signal chain. So was taking a bit of a risk buying this as one review said it has terrible noise. Other said it was fine. When it arrived I was pleasantly surprised by the build quality and the included cables and power supply. The fact it's USB-C powered is a huge plus for me. I didn't notice any noise when I plugged all my gear in and recorded a new video for Youtube. When I watched it back I could hear a high pitched whine during the silent parts. I then investigated how I'd set it up. I remember reading in the manual that you should use a ground loop isolator if you have noise. Dug out one I had in a drawer and adding on the output cable. Then absolutely silent! Cranking up the volume on my audio interface just had a slight hiss (no more than before adding the mixer). So, if you are reading this and need a discreet mixer for synths etc that can be tucked away then this is a great option. I used to have a bigger desktop mixer and it was always so bulky and in the way. This is great as it just take up as much room as a pack of cards. Very impressed and highly recommend it! (just get a decent ground loop isolator!).