Cambridge Soundworks OontZ Angle 3 Pro Boat
Score: 84/100
Marshall Emberton III
Score: 87/100Rankings

The Marshall Emberton III combines 360° True Stereophonic sound, IP67 durability and over 32 hours of battery life in a compact, vintage-styled design. Its limited EQ presets and lack of deep sub-bass keep it from matching larger powerhouses. Suited for users who value balanced sound, ruggedness and long endurance in a stylish package.
The OontZ Angle 3 Pro is a powerful, IPX7-rated Bluetooth speaker delivering 21 W of sound with app-controlled EQ and a 15-hour battery. Its downsides are its weight and size, plus occasional connectivity hiccups at longer range. Ideal for outdoor parties where volume and durability outweigh the need for ultra-light portability.
| Attribute | Cambridge Soundworks OontZ Angle 3 Pro Boat | ![]() |
|---|---|---|
15 hours | 32 hoursbest | |
| ↓ lower better | 600 gbest | 673 g |
21 W | 38 Wbest | |
2,200 mAhbest | — | |
30 mbest | — | |
| ↓ lower better | 180 minutesbest | — |
— | 1 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | Cambridge Soundworks OontZ Angle 3 Pro Boat | ![]() |
|---|---|---|
Battery & Power(1) | ||
Battery Life (hours) | 15 hours | 32 hours |
Build & Design(3) | ||
Weight (g) | 600 g | 673 g |
Dimensions (W×H×D) (mm) | 235 x 95 x 89 mm mm | 80x190x110 mm |
IP Rating | IPX7 | IP67 |
Connectivity(1) | ||
Bluetooth Version | 5.0 | Low Energy |
Audio(1) | ||
Output Power (W) | 21 W | 38 W |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the OontZ Angle 3 Pro for its substantial power increase, larger drivers, and robust IPX7 waterproofing, noting that the DSP delivers distortion-free volume even at maximum levels.
Everyday users consistently praise the speaker's booming bass, loud volume, and durable waterproof design, especially for pool parties, beach outings, and boat trips. The long battery life and easy pairing are also frequent positives, while weight, occasional connectivity hiccups, and bass dominance at high volumes are the most common criticisms.

“crystal clear sound”
“competes head-to-head with the best.”

“the one to beat”


Professional reviewers consider the Emberton III a top-small Bluetooth speaker, lauding its 32+ hour battery, authentic Marshall tone, and phenomenal 360° audio while noting the limited EQ presets and lack of smart features as the main drawbacks. They view it as a stylish, rugged option that outperforms many rivals in sound balance and endurance, though not a mandatory upgrade for owners of the previous Emberton.
Everyday users overwhelmingly praise the Emberton III for its rich, clear sound, impressive bass for its size, premium build quality, and marathon-long battery life, often saying it competes head-to-head with higher-priced options. The most common complaints revolve around the restricted EQ presets and a bass response that isn't as deep as larger speakers.