Turn Off Computer Speakers Headphones Plugged

Have only used it plugged directly into computer but it works as expected. Headphones are not comfortable but I didn't expect them to be.

On/Off switch - Automatically goes off when closing down computer and you can use it to charge something.

I got this for two reasons: 1. Didn't want to reach to the back of the iMac every time I wanted to use headphones. When plugged in, this hangs about 2 inches below the bottom of the screen and is easy to reach to plug in headphones. 2. Didn't want to use the headphone jack on the iMac for risk of wearing it out over time with the switch inside getting stuck on headphone mode which would prevent sound from built in speakers. The item looks very well made and durable. The sound quality is crystal clear with no hiss or pops. NOTE: when you plug a headphone in, it does not automatically switch to headphone mode. That has to be done manually in the operating system (both MAC OS, and Windows/BootCamp). Simple procedure of switching to GHW USB Audio. One might think this is a hassle but it's not because this way you can leave the cable plugged into your USB-C Port and still have sound via the internal speakers. In fact, you can leave the headphone also plugged in and still have sound via internal speakers until you choose otherwise.

I always hated buying speakers for the computer; they always seem to be problematic. But these plugged in USB and worked without having to restart. They sound great and the volume controls and mute are easy to use. Very happy with this purchase.

I use this with my computer workstation and have the computer speakers plugged in as a "slave" to my computer so they power down automatically with the computer. Made of high quality materials, I expect many years... decades of use from this product.

Before I bought this amplifier, I would have to connect my headphones (Sennheiser HD201 and eH350) to my desktop speaker's headphone output each time I wanted to use them (late at night, for example). In order to get roughly the same listening volume through my headphones, I'd have to really crank up the volume knob on my speakers (they take a lot of power compared to your typical earbuds). With the HA400, I can keep my headphones and speakers connected all the time. When I want to use my headphones, I just turn down the volume control for the port my speakers are connected to and turn up the volume for my headphones (and vice versa to use the speakers again). This amplifier really lets me enjoy my headphones. The amplifier seems really well built and solid. The input/outputs are all 1/4 stereo connectors (could be a con for some, but I have a bunch of 1/4-1/8 adapters already, so it's not a problem for me). The only thing that I feel it's really lacking is a power switch, but in reality, that's not a big deal to me. All in all, I highly recommend.

Plugged in easily to my computer

If your computer is not loaded with USB ports, here's your solution. An On/Off switch for each port.

I have always loved Bose products: my earbuds, my headphones, and even my computer speakers. It can be hard to return once you get acclimated to a certain level of sound quality. Adding this Bose soundbar to my Home entertainment system was super easy, and HOLY MOLY, the difference in immersiveness is jaw-dropping. The sounds feel everywhere around you but are conveniently packed in a sleek and aesthetically pleasing package. The true test of a soundbar, a Michael Bay movie, and explosions galore, but the thrill it adds to suspense video games and concerts is beyond belief. If you appreciate audio as a foundational level factor in your entertainment, buy this now.

This unit is very versatile for switching from 2 sources to one set of headphones, or from one source to a set of headphones or earphones or switching between computer headphones and speakers. It's small, compact and very portable so doesn't take up much space on the desk and is easy to transport. I use it to switch between a headphone amp/headphones combo and an amplifier and speakers using one source. there are no negatives about this handy device! It has so many applications it is indispensible!