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The short answer
Marshall Middleton II wins this comparison. Choose it if you want the speaker to charge another device. Marshall Middleton II can charge another device from its battery; the other speaker’s verified specification says it cannot. Charging a phone uses some of the speaker’s battery.
Ultimate Ears
360° sound for picnics and pool days, with a floating body and included carabiner. The app offers EQ controls, while Outdoor Boost adds a dedicated mode for listening outside.
Bettr Score
52/100
Marshall
Built for long weekends, with 30+ hours of playtime, 360° sound and phone charging. Bass and treble controls let you adjust the sound; expect 3.97 lb to carry.
Bettr Score
66.5/100
| Ultimate Ears EVERBOOM | Specification | Marshall Middleton II |
|---|---|---|
$249.99 ✓ Winner | Reference price | $329.99 |
20 hours | Advertised battery life | 30 hours ✓ Winner |
2.12 lb ✓ Winner | Weight | 3.97 lb |
IP67 | Ingress protectionTie | IP67 |
4 | Durability tierTie | 4 |
5.2 | Bluetooth versionPersonal preference | 5.3 |
No | Can charge another device | Yes ✓ Winner |
No | USB audio inputNot enough data | Not stated / not applicable |
No | Auracast or compatible broadcast pairing | Yes ✓ Winner |
Yes | Floats in waterNot enough data | Not stated / not applicable |
No | Speakerphone | Yes ✓ Winner |
The buying advice
Choose Ultimate Ears EVERBOOM if you want less weight in your bag. Ultimate Ears EVERBOOM weighs 2.12 lb versus 3.97 lb — 1.85 lb less to carry.
Choose Marshall Middleton II if a longer advertised playtime matters. Marshall Middleton II advertises up to 30 hours, versus up to 20 hours for Ultimate Ears EVERBOOM.
Ultimate Ears EVERBOOM weighs 2.12 lb versus 3.97 lb — 1.85 lb less to carry. Marshall Middleton II advertises up to 30 hours, versus up to 20 hours for Ultimate Ears EVERBOOM. The recorded reference-price difference is $80.00.
Ultimate Ears EVERBOOM weighs 2.12 lb versus 3.97 lb — 1.85 lb less to carry.
Marshall Middleton II advertises up to 30 hours, versus up to 20 hours for Ultimate Ears EVERBOOM.
Marshall Middleton II can charge another device from its battery; the other speaker’s verified specification says it cannot. Charging a phone uses some of the speaker’s battery.
Ultimate Ears EVERBOOM has the lower recorded reference price: $249.99 versus $329.99, a $80.00 difference.
People's Pick
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eBay — New
In stock · checked Oct 30, 2026
Price needs rechecking. Confirm at the retailer.
$160.99
Item + shipping · before tax
$160.99 + $0.00 shipping
We may earn a commission when you buy through links marked “Affiliate link.” This does not change your price or our scores. How we earn
eBay — New
In stock · checked Oct 30, 2026
Price needs rechecking. Confirm at the retailer.
$299.00
Item price · shipping unknown
We may earn a commission when you buy through links marked “Affiliate link.” This does not change your price or our scores. How we earn
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