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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want to plug up to four pairs of stereo headphones into one source and give every listener their own volume knob, choose Behringer MICROAMP HA400; if you need a single wired over-ear stereo headset with a boom mic for gaming on an Xbox or Windows PC, choose Amazon Renewed Microsoft 8LI-00001. These two could hardly be more different. One is a distribution box that splits one stereo signal four ways. The other is a headset you wear on your head. The right pick comes down to whether you're the person handing out headphones or the person wearing them.
• Behringer MICROAMP HA400 — biggest strength: Four independent stereo outputs with four separate volume controls, built on low-noise 4580 op-amps, in a box small enough to sit on a desk.
• Behringer MICROAMP HA400 — biggest trade-off: It makes no sound on its own. No headphones, no mic, no wireless — it's a hub, not a listening device.
• Amazon Renewed Microsoft 8LI-00001 — biggest strength: A complete, battery-free wired stereo headset with a boom mic, on-ear volume and mute controls, and 20 Hz–20 kHz dynamic drivers.
• Amazon Renewed Microsoft 8LI-00001 — biggest trade-off: It's a single headset for a single listener, and it's a renewed unit rather than a new one.
• For four listeners sharing one stereo source → Behringer MICROAMP HA400.
• For one gamer who wants a mic and a headset in one → Amazon Renewed Microsoft 8LI-00001.
The HA400 is a monitor distribution system in a box about the size of a deck of cards — 4.1 inches deep, 2.3 wide, 1.8 tall, and just over 13 ounces. Inside it are four high-power stereo amplifiers that Behringer says hold their sonic quality even at maximum volume, using 4580 operational amplifiers of the kind found in full-size audio gear. In practical terms, that means you can feed one stereo mix in and send it out to four pairs of headphones at once, each with its own Phones Level control. The output mode is stereo, there are four output channels, the connector type is TRS, and it runs on DC power from the included 12 V adapter.
Who should buy it? Anyone whose problem is sharing, not hearing. A small studio tracking several musicians at once, where each player wants the main mix at a different loudness. A band rehearsing with a click track. A household where one person is mixing and others want to listen in. A teacher or podcaster running a session with guests. It pairs naturally with audio interfaces, mixers, laptops, desktops, tablets, smartphones and gaming consoles — basically anything with a stereo output — and it works with practically any headphones you already own.
Who should skip it? Anyone who actually needs headphones. The HA400 comes with no drivers, no cable, no ear cups and no microphone. It's also a solid-state, wired-only device with a single band and a modest 0.04 watts of output wattage per the spec sheet, so if you're expecting a speaker or a wireless solution, this isn't it. If you only ever listen alone, you don't need four channels — you need a headset.
The 8LI-00001 is a Microsoft wired stereo headset in black, over the ear, with a fabric finish and a boom mic built in. It's designed around Xbox consoles and Windows PCs, connecting over a 3.5 mm jack, and it supports spatial sound formats like Windows Sonic and Dolby Atmos. Dynamic drivers cover 20 Hz to 20 kHz — the full range of human hearing — and the on-ear push-button controls handle volume and mute without forcing you to dig through menus. Noise control is handled by sound isolation, and it's aimed at teens and adults.
Who should buy it? A gamer who wants one cable, zero batteries and a mic already attached. Because it's wired, there's no charging routine and no pairing dance — you plug the 3.5 mm jack in and you're live. The on-ear mute button matters more than people expect during online play, and the boom mic means you don't need a separate desk microphone. It's also a sensible pick for anyone who wants spatial audio support on an Xbox or a Windows machine without adding a dongle or a receiver.
Who should skip it? Anyone who needs to serve multiple listeners, and anyone who insists on brand-new packaging. This is a renewed item, which means it has been through Amazon's renewal process rather than arriving as a factory-sealed retail unit. The spec sheet also lists connectivity as both wired and wireless, but the description is clear that the practical connection is the 3.5 mm jack — so if you're expecting a purely wireless headset, this isn't the product to build that expectation around. And if you already own a good pair of headphones and just need to split the signal, buying a second headset solves the wrong problem.
Side-by-Side: Which Should You Choose?
• Best for sharing one stereo source with several people → Behringer MICROAMP HA400. Four outputs, four independent level controls.
• Best for studio and rehearsal monitoring → Behringer MICROAMP HA400. It's explicitly built as a monitor distribution system for tracking sessions.
• Best for Xbox and Windows PC gaming → Amazon Renewed Microsoft 8LI-00001. Designed for those platforms, with spatial sound support.
• Best for battery-free, always-ready use → Amazon Renewed Microsoft 8LI-00001. Wired over 3.5 mm means nothing to charge.
• Best for working with headphones you already own → Behringer MICROAMP HA400. It's source-agnostic and headphone-agnostic.
• Best for a compact, desk-friendly footprint → Behringer MICROAMP HA400. Roughly 4.1 × 2.3 × 1.8 inches and about 13 ounces.
• Best for full-range stereo audio specs on paper → Amazon Renewed Microsoft 8LI-00001. Dynamic drivers rated 20 Hz–20 kHz.
In my opinion, most people searching these two together are actually looking for a way to get stereo audio to more than one set of ears — and for that job, I'd buy the Behringer MICROAMP HA400. It's the only one of the two that multiplies your listening instead of replacing it, and the four independent level controls are the feature that makes it genuinely useful rather than just a splitter. That said, if your real need is a headset with a mic for Xbox or PC gaming, I'd go with the Amazon Renewed Microsoft 8LI-00001 and accept that it's a renewed unit. Buy the HA400 to serve a room. Buy the 8LI-00001 to serve yourself.
how to connect wireless headphones
This pair doesn't really answer that question, and it's worth being straight about why. The Behringer MICROAMP HA400 is a wired, DC-powered stereo amplifier with TRS outputs — it has no wireless mode at all. The Microsoft 8LI-00001 is listed with both wired and wireless connectivity, but its described connection is a 3.5 mm jack into an Xbox or Windows PC. If wireless is your priority, neither of these is the wireless-first product you're picturing.
how to use wireless headphones
Using a wireless headset normally means pairing it once, then powering it on each session and charging it periodically. That's not what either of these products asks of you. The 8LI-00001 skips batteries entirely because it's wired over 3.5 mm, so there's nothing to pair and nothing to charge — you just plug in. The HA400 isn't a headphone at all, so there's no pairing step; you connect your source and your headphones and set levels.
how to wireless headphones work
Wireless headphones carry audio over a radio link instead of a cable, which is why they need their own power source and a receiver inside. Neither product here is built around that idea. The HA400 is a solid-state, DC-powered distribution amplifier that takes one stereo input and feeds up to four wired headphone outputs. The 8LI-00001 is a wired over-ear headset with a boom mic and on-ear controls, designed around a physical 3.5 mm connection.
"Value" depends entirely on what you're solving for, so check the current price on Amazon before deciding. If you need to get one stereo mix to four listeners with individual volume control, the HA400 does something the headset simply cannot, which makes it the better value for that use. If you need one person to hear and talk during a game, the 8LI-00001 covers both jobs in a single item.
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