Short answer: the Xiaomi Sound Outdoor. It ranks #43 of 142 medium speakers by sound quality at $54.99; the Marshall Emberton III ranks #102 and costs $160.04, which makes this an easy call rather than a real tradeoff.
What the Marshall Emberton III offers: 30 hour battery life - among the best in its class; a 20 min quick-charge gives 4 hours. IP67 rated, durable rubbery build using 50% recycled plastic. Watch for: Strange unnatural echo-like sound coloration, bass not as deep as competitors. Not technically a 360 speaker, only front and rear. Not very loud. Not really any different from the Emberton II except having the treble turned down a little bit.
What the Xiaomi Sound Outdoor offers: Xiaomi Sound Outdoor uses 20W woofer, 10W tweeter + 2x passive radiators. Its 597 g, claimed 12 hours (Manufacturer specified) battery life, IP67 protection and mono playback make it a practical option for its intended room or portable use. Watch for: Its 60Hz - 20kHz (Manufacturer specified) specification points to limited deep-bass reach for the cabinet size. There is no companion app. No EQ adjustment.
Buy the Xiaomi Sound Outdoor. It ranks higher for sound quality than the Marshall Emberton III and costs less, so there is no real case for the other one.
There is a real battery-life gap here: the Marshall Emberton III is rated for 32 hours, the Xiaomi Sound Outdoor only 12 hours.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Marshall Emberton III | Xiaomi Sound Outdoor | |
|---|---|---|
| Price | $160.04 | $54.99 |
| Ranked | #102 of 142 in Medium Size Portable Bluetooth Speakers | #43 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Bass Extension (-10dB) | 62Hz | - |
| Battery Life | 32 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Party Mode | Yes (Marshall Stack) | Yes (Speakersync, up to 100 speakers) |
| Weight | 1.5 lbs (673 g) | 1.3 lbs (597 g) |
| IP Rating | IP67 | IP67 |
| Bluetooth Version | 5.3 | 5.4 |
| Dimensions | 6.3" x 2.7" x 3" (160 x 68 x 76 mm) | 7.7" x 2.7" x 2.6" (196.6 x 68 x 66 mm) |
| Drivers | 2x 2" full-range cone drivers + 2x 2" passive radiators | 20W woofer, 10W tweeter + 2x passive radiators |
| TWS | No | Yes |
| EQ | Yes (3 presets via app) | No |
| Built-in Microphone | Yes | Yes |
| Stereo | Yes | No |
| Omnidirectional | Yes | No |
| Power Input | USB-C | USB-C |
| Power Bank | No | - |
| Aux Input | No | - |
| Amplifier Power | 20W | 30W |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Digital Aux Input | No | No |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
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Prices on this page were last checked September 16, 2026 at 12:41 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Marshall Emberton III: $160.04 Amazon eBay
Pros: 30 hour battery life - among the best in its class; a 20 min quick-charge gives 4 hours. IP67 rated, durable rubbery build using 50% recycled plastic. Measured bass extension of 62Hz (-10dB).
Cons: Strange unnatural echo-like sound coloration, bass not as deep as competitors. Not technically a 360 speaker, only front and rear. Not very loud. Not really any different from the Emberton II except having the treble turned down a little bit.
Full Marshall Emberton III review and specifications →
| Amplifier Power | 20W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 62Hz |
| Battery Life | 32 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 6.3" x 2.7" x 3" (160 x 68 x 76 mm) |
| Drivers | 2x 2" full-range cone drivers + 2x 2" passive radiators |
| EQ | Yes (3 presets via app) |
| IP Rating | IP67 |
| Omnidirectional | Yes |
| Party Mode | Yes (Marshall Stack) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 1.5 lbs (673 g) |
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Xiaomi Sound Outdoor: $54.99 Amazon eBay
Pros: Xiaomi Sound Outdoor uses 20W woofer, 10W tweeter + 2x passive radiators. Its 597 g, claimed 12 hours (Manufacturer specified) battery life, IP67 protection and mono playback make it a practical option for its intended room or portable use.
Cons: Its 60Hz - 20kHz (Manufacturer specified) specification points to limited deep-bass reach for the cabinet size. There is no companion app. No EQ adjustment.
Full Xiaomi Sound Outdoor review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.7" x 2.7" x 2.6" (196.6 x 68 x 66 mm) |
| Drivers | 20W woofer, 10W tweeter + 2x passive radiators |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Speakersync, up to 100 speakers) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs (597 g) |
- Links
- Reviews, Comparisons and Sound Samples
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