Ultimate Ears WONDERBOOM 4 Portable Bluetooth Speaker

The Ultimate Ears WONDERBOOM 4 is a compact, 360-degree portable Bluetooth speaker designed for durability and all-day use. It features balanced, omnidirectional sound from a dual-driver setup with emphasis on mid-range clarity and controlled bass, rated to play up to 13 hours per charge. The speaker is IP67-rated waterproof and dustproof, making it fully submersible and rugged enough for pools, beaches, and outdoor adventures. Bluetooth 5.3 provides a robust 131-foot (40m) wireless range and stable multi-speaker pairing for stereo or party modes. At just 285g (10 oz), it's highly portable with a fabric strap and floating design. No aux input or speakerphone mic; EQ adjustments require the Ultimate Ears app. Best for outdoor enthusiasts, travelers, and casual listeners seeking reliable, balanced sound in a rugged package without premium pricing.