Short answer: the Middleton II for bass, with the Everboom’s ranking still unsettled. The Middleton II has very deep bass for its size and weight, but the boost drowns out the midrange. The Everboom may move around as better sound samples arrive, and it has an upper bass boost with a warm, rolled-off treble.
Buy the Marshall Middleton II if sound quality matters more than the price. Buy the Ultimate Ears Everboom if the price matters more than sound quality.
There is a real battery-life gap here: the Marshall Middleton II is rated for 30 hours, the Ultimate Ears Everboom only 20 hours.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Marshall Middleton II | Ultimate Ears Everboom | |
|---|---|---|
| Price | $330 | $149.99 |
| Ranked | #31 of 93 in Large Size Portable Bluetooth Speakers | #35 of 93 in Large Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 38Hz | - |
| Battery Life | 30 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (5 band) | Yes |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Marshall Stack) | Yes (PartyUp up to 50 speakers) |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | USB-C |
| Weight | 4 lbs (1.8 kg) | 2.1 lbs (949 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| TWS | Yes | No |
| Bluetooth Version | 5.3 | 5.1 |
| Dimensions | 9.1” x 3.9” x 4.3” (230 x 98 x 110 mm) | 8.1” x 3.3” x 4.3” (205 x 85 x 110 mm) |
| Drivers | 2x 75mm woofers, 2x 0.625” tweeters + 2x passive radiators | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 80W | 14W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | Yes (built-in loop) |
Related Speaker Comparisons
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Prices on this page were last checked October 2, 2026 at 10:18 PM 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 Middleton II: $330 Amazon eBay
Older model: the Marshall Middleton (ranked lower, rated 4/5).
Pros: Very deep bass for the size/weight. Measured bass extension of 38Hz (-10dB).
Cons: Bass boosted which drowns out the midrange. Dip around 200Hz, peak at 1kHz, dipped at 1.6kHz. Strange frequency response through the mids.
Full Marshall Middleton II review and specifications →
| Amplifier Power | 80W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 38Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.1” x 3.9” x 4.3” (230 x 98 x 110 mm) |
| Drivers | 2x 75mm woofers, 2x 0.625” tweeters + 2x passive radiators |
| EQ | Yes (5 band) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Marshall Stack) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| Weight | 4 lbs (1.8 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Marshall Middleton II vs Sonos Move
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- Marshall Middleton II vs Marshall Middleton
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Ultimate Ears Everboom: $149.99 Amazon eBay
Pros: Ultimate Ears Everboom uses 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators. Its 949 g, claimed 20 hours (Manufacturer specified) battery life, IP67 protection, aux input and mono playback make it a practical option for its intended room or portable use.
Cons: Careful placement and volume setting remain important for balanced sound. Warm tuning with an upper-bass boost and rolled-off treble, and the bass does not go very deep.
Full Ultimate Ears Everboom review and specifications →
| Amplifier Power | 14W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.1” x 3.3” x 4.3” (205 x 85 x 110 mm) |
| Drivers | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | No |
| Weight | 2.1 lbs (949 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Everboom vs Marshall Middleton
- Ultimate Ears Everboom vs LG Xboom Bounce
- Ultimate Ears Everboom vs Marshall Kilburn II
- Ultimate Ears Everboom vs Sonos Move
- Ultimate Ears Everboom vs JBL Xtreme 4
- Ultimate Ears Everboom vs Sonos Move 2
- Ultimate Ears Everboom vs Soundcore Motion X500
- Ultimate Ears Everboom vs W-King T9
- See all 48 comparisons