Description
Ultimate Ears Wonderboom 4
Pocket-Sized Powerhouse with 360-Degree Sound
Ultimate Ears built the Wonderboom 4 Ultra-Portable Bluetooth Speaker to deliver a surprisingly massive audio experience from a remarkably compact, pint-sized chassis. This cylindrical speaker features a unique omnidirectional acoustic array that projects uniform, balanced audio in a complete 360-degree circle. Consequently, listeners can enjoy clear vocals and punchy bass from any angle around the room or campfire.
Furthermore, the design effortlessly survives demanding outdoor excursions. Wrapped in a rugged, two-tone athletic fabric housing and sealed against environmental damage, the Wonderboom 4 easily shrugs off drops, impacts, and splashes. As a result, it serves as an incredibly resilient audio companion for hiking trips, pool parties, or beach outings.
Key Product Features & Innovations- Ultimate Ears Wonderboom 4
True 360-Degree Acoustic Projection: Fill your entire environment with music. The dual-driver setup radiates sound waves evenly in all directions, which eliminates frustrating audio dead zones when you place the speaker in the center of a gathering.
Outdoor Boost & Podcast EQ Modes: Adapt your sound signature instantly. With the click of a dedicated button on the bottom panel, you can activate Outdoor Boost to crank up maximum volume and treble outdoors, or switch to a specialized Podcast Mode that sharpens vocal clarity.
IP67 Environmental Defense: Take your soundtrack into the elements without hesitation. The chassis boasts total protection against sand, mud, and dust. Because the unit floats naturally on water, you can let it drift right alongside you in the swimming pool.
Double Up Wireless Pairing: Expand your soundstage effortlessly. By pressing the top-mounted center button, you can wirelessly link two Wonderboom 4 speakers together to create a true left-and-right stereo pair or double the overall volume for a larger crowd.
Eco-Friendly Material Design: Enjoy your audio with a cleaner conscience. Ultimate Ears crafts the Wonderboom 4 using at least 31% post-consumer recycled plastic by weight, which breathes new life into discarded electronics without sacrificing structural durability.
Technical Specifications- Ultimate Ears Wonderboom 4
Sku- M57744L
| Parameter | Specification Details |
| Speaker Category | Ultra-Portable 360-Degree Bluetooth Speaker |
| Acoustic Array | 2x 40 mm Active Drivers | 2x 46 mm x 65 mm Passive Radiators |
| Maximum Sound Level | 86 dBC (Normal Mode) | 87 dBC (Outdoor Boost Mode) |
| Frequency Response Range | 75 Hz to 20 kHz |
| Ingress Protection Rating | IP67 Certified (Waterproof, Dustproof, Shock-Resistant, Floats) |
| Wireless Protocol | Bluetooth® Technology with Extended Range |
| Wireless Operating Range | Up to 131 feet (40 meters) |
| Battery Life Expectancy | Up to 14 Hours of Continuous Playback (Varies by volume) |
| Charging Interface | USB Type-C Input Port |
| Chassis Materials | Recycled Plastics, Heavy-Duty Two-Tone Fabric, Nylon Loop |
| Dimensions & Weight | 4.1″ H x 3.7″ Diameter (104 mm x 95 mm) | Approx. 14.8 oz (420 g) |
Frequently Asked Questions (FAQ)
Q: Can I pair a Wonderboom 4 with an older Wonderboom 3 speaker?
A: Yes, you can! You can wirelessly pair the Wonderboom 4 with previous generations like the Wonderboom 3 to blast music over a wider area. However, because of architectural software differences across generations, they will only play in mono “Double Up” mode rather than splitting into a distinct left/right stereo image.
Q: Does this speaker feature an internal microphone for hands-free phone calls?
A: No. Ultimate Ears engineered the Wonderboom 4 strictly as a music playback device. Because the unit lacks an internal microphone array, you cannot use it as a speakerphone. When a call arrives, the audio will automatically pause and route through your phone instead.
Q: How does the speaker handle drops from high surfaces?
A: The Wonderboom 4 features an incredibly resilient, shock-resistant design. Ultimate Ears rigorously drop-tests the unit from a height of five feet onto hard surfaces. The impact-absorbing rubber caps on the top and bottom cushion the internal components, which keeps your music playing without a hitch.