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The Ultimate Ears BOOM 4 is a cylindrical black wireless speaker measuring 7.3 cm in diameter. It produces 360-degree audio with deep bass response. The enclosure is rated waterproof, floats on water, and withstands submersion down to 1 meter for 30 minutes.
Not available in FR
Available in: US
Product images
Available at shop.simon.com
$ 149.99
How this product compares
2-year manufacturer warranty (+), rugged portable design (+), substantial weight for its size (+)
Mid-range price tier (+), includes all necessary accessories like USB-C and power adapter (+), zero assembly difficulty (+)
Space-efficiency ratio: seats per m² of floor footprint (width × depth)
Highly portable cylindrical form factor (+), lightweight 743g design (+), compact dimensions for easy placement (+)
| Brand | ultimate_ears |
| Model | BOOM 4 |
| Battery Life | 15 |
| Charging Type | usb_c |
| Fast Charging | No |
| Power Source | battery |
| Width | 8.7 cm |
| Depth | 8.7 cm |
| Height | 17.5 cm |
| Weight | 743 kg |
| Water Resistance | ipx7 |
| Material | Fabric |
| Smart Features | app_control |
| Portable | Yes |
| Rgb Lighting | No |
| Foldable | No |
| Multi Device | Yes |
| Product Type | speaker |
| Sub Type | portable |
| Style | Modern |
| Color Family | Black |
| Color | Black |
| Wireless | bluetooth |
| Bluetooth Version | 5.2 |
| Ports | usb_c |
| Supported Standards | bluetooth_5_2 |
| Frequency Response | 90Hz - 20kHz |
| Noise Cancellation | No |
| Microphone | Yes |
| Stereo | Yes |
| Price Tier | Mid Range |
| Warranty | 2 years |
| Warranty Type | manufacturer |
| Assembly Difficulty | None |
| In The Box | Ultimate Ears BOOM 4 Portable Bluetooth Speaker, USB-C Cable, Power Adapter, Documentation |