The EarFun UBOOM X is a portable Bluetooth speaker built for the outdoors, combining a promised 30 hours of playback with 80W of stereo output driven by a 4-driver design and EarFun's JumboBass tuning. It features Bluetooth 5.3 connectivity, a TWS/Party Connect mode that lets you link up to 50 units, and full IP67 waterproof and dustproof protection. It has a built-in LED light show and a carry handle and strap for portability, and it offers the ability to act as a power bank for your other devices. The UBOOM X is positioned as a rugged, feature-rich party speaker that's just as at home indoors as it is outdoors.
Our Verdict
The EarFun UBOOM X is decent for listening to music. Its sound profile is generally pretty balanced, if a little uneven in the bass and mid-range. That's to be expected from an affordable, boombox-style speaker, and shouldn't deter you from considering this if you're shopping at this price point. There's some extra warmth in the bass and low-mids, which can make basslines sound full but can also muddy vocals a little. The treble is fairly well controlled, so details like cymbals sound clear without getting overly sharp. This speaker also gets impressively loud for its size, with enough output for an average-sized room, and there's little compression at max volume. It comes with over 30 EQ presets so you can find a sound you like, and includes some specially designed presets that take advantage of both EQ and dynamics processing. That said, we think the default sound is a great starting point. You'll want to position this speaker facing you, as its forward-facing drivers sound noticeably more muffled when you're behind it.
Over 30 EQ presets and a 10-band graphic EQ.
Reaches up to 98 dB at max volume.
Forward-facing drivers means sound varies with your listening position.
Boosted high-bass can make voices sound a bit muddy.
The EarFun UBOOM X is passable for watching movies and videos. Out of the box, it offers a pretty balanced sound profile that you can change via its 30+ presets. And it also gets impressively loud for its size, with enough output for an average-sized living room, though bass-heavy effects don't have much thump or rumble. It can play back stereo audio without downmixing to mono, so stereo effects like long reverb tails in epic synth movie scores will still sound exciting. That is, so long as you're positioned in front of the speaker, as its forward-facing design means the sound is considerably more muffled from behind. Unfortunately, even with Video Mode enabled, latency remains high, so you may notice lip-sync issues. That said, different apps and devices compensate for latency in different ways.
39-hour battery life.
Reaches up to 98 dB at max volume.
Forward-facing drivers means sound varies with your listening position.
Boosted high-bass can make voices sound a bit muddy.
The EarFun UBOOM X is satisfactory for listening to podcasts. It offers a mostly balanced mid-range, so voices are generally clear, though some extra warmth can make them sound a little muddy. It gets loud enough to hear from across the room, and the included carrying strap lets you take it from room to room while cleaning up before a party. Unfortunately, its middling directivity means the sound can change noticeably depending on where you're sitting or standing in relation to the speaker.
Over 30 EQ presets and a 10-band graphic EQ.
Reaches up to 98 dB at max volume.
Forward-facing drivers means sound varies with your listening position.
Boosted high-bass can make voices sound a bit muddy.
The EarFun UBOOM X doesn't come with a built-in voice assistant, but you can control your phone's built-in Siri, Google Gemini, or Google Assistant using the speaker's mic. The mic does an amazing job picking out your voice from a few meters away and in noisy environments. So you can set it up near your grill station while hosting a garden BBQ and control it hands-free on your phone. However, you should try to keep the speaker facing you, as its front-facing drivers sound considerably more muffled when you're listening from behind it.
IP67 rating keeps the speaker safe from the elements.
Mic offers excellent performance.
Forward-facing drivers means sound varies with your listening position.
Boosted high-bass can make voices sound a bit muddy.
The EarFun UBOOM X is good for outdoor use. It has great build quality, with an IP67 rating that keeps rain and dust out during park hangs. It feels sturdy and has a handy carrying strap, so you can easily carry it or hang it from a nearby tree branch. With a battery life of around 39 hours on a single charge, you can take this speaker on a camping trip without worrying about the battery dying. It has a decently balanced sound profile and gets impressively loud for its size, with enough output to soundtrack a garden hangout, though bass-heavy music lacks some thump and rumble. Since it has forward-facing drivers, you'll also want to be positioned in front of it for best results. While it lacks multipoint pairing, its Bluetooth range is good, so you can wander away from the speaker without the music dropping out.
Over 30 EQ presets and a 10-band graphic EQ.
39-hour battery life.
Reaches up to 98 dB at max volume.
IP67 rating keeps the speaker safe from the elements.
Forward-facing drivers means sound varies with your listening position.
Boosted high-bass can make voices sound a bit muddy.
Changelog
- Updated Aug 28, 2026: This review has been updated to Test Bench 1.0, which includes new results for all of our Sound tests: Frequency Response Accuracy, Raw Frequency Response, Directivity, and Loudness. There have also been text changes made throughout the review, including to the usages and product comparisons, to match these results. You can read more about these changes in our changelog.
- Updated Nov 11, 2025: Review published.
- Updated Nov 05, 2025: Early access published.
- Updated Oct 15, 2025: Our testers have started testing this product.
Check Price
Differences Between Sizes And Variants
The EarFun UBOOM X comes in a single color variant: 'Black' (here's a picture of our unit's label).
If you encounter another variant of this speaker, please let us know in the comments.
Popular Speaker Comparisons
The EarFun UBOOM X sits in the same incredibly competitive price range as popular portable speakers like the Anker Soundcore Motion Boom Plus, the Tribit StormBox Blast, the JBL Flip 7, and the Ultimate Ears MEGABOOM 4. This price range tends to serve two distinct niches that aren't always compatible: loudness and portability. In terms of output volume, the EarFun is closest to the Anker and Tribit. They share a boombox-style design and get loud enough to fill larger rooms with sound. Where the EarFun really shines is in battery life: it offers a remarkable 39 hours of continuous playback, easily surpassing the others. You can also use it as a battery pack to charge your other devices via USB and use it with your phone's voice assistant, making it a very versatile option.
Learn more about how to choose a Bluetooth speaker in our buying guide, or check out our recommendations for the best portable Bluetooth speakers, the best outdoor speakers, and the loudest Bluetooth speakers.
The EarFun UBOOM X is a better portable boombox-style speaker than the Anker Soundcore Motion Boom Plus, though the differences are slight. The speakers are fairly similar in size, price, and max volume. That said, the EarFun has a battery life that's almost four times as long as the Anker, and its built-in mic does a much better job picking up your voice in noisy environments. The main reason to choose the Anker is its support for Bluetooth multipoint, allowing you to connect your phone and laptop to the speaker simultaneously.
The EarFun UBOOM X and the Tribit StormBox Blast are similarly-sized, boombox-style portable Bluetooth speakers. The EarFun is a bit lighter, making it easier to carry, and it also has a sturdier, dustproof build. You can also use your phone's voice assistant with the EarFun, and it has a slightly longer battery life. On the other hand, the Tribit supports Bluetooth multipoint with up to two devices, and its directivity is better, so your audio sounds less muffled if you're off to the side of the speaker.
The EarFun UBOOM X and the Anker Soundcore Motion X600 perform remarkably similarly, though each has distinct strengths. The Anker is smaller, making it easier to carry. Subjectively, its design also looks better indoors, along with your other furniture. That makes sense, as it doesn't have a dust-proof rating, unlike the EarFun, which is sealed to dust ingress (although both will withstand submersion in water up to 1 meter in depth). The EarFun's battery life is roughly four times that of the Anker, but its latency is noticeably higher. In general, if you're looking for a park-hang companion, go with the EarFun, and if you want a portable speaker to carry from room to room, go with the Anker.
Though similarly priced, the EarFun UBOOM X and the JBL Flip 7 serve different usages. The EarFun is a fairly chunky, boombox-style speaker. Its built-in handle makes it portable enough to carry in one hand, but it's not something you can easily toss in a bag like the JBL. That size difference affects how the speakers perform, too. The EarFun gets a bit louder and has a much longer battery life. On the other hand, the JBL's IP68 rating beats the EarFun's IP67, and it supports Bluetooth multipoint. It comes down to usage: if you need to pump up the jams by the hockey rink, the EarFun is the way to go, and if you need a nimble, versatile friend to accompany you on your travels, choose the JBL.
Test Results
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