JBL Go 4 Bluetooth Speaker Review 2025 – Ultra-Portable Big Sound If you’re looking for a compact yet powerful Bluetooth speaker that can follow you anywhere—whether it’s a poolside party, a dusty hiking trail, or simply relaxing at home—the JBL Go 4 is one of the best ultra-portable speakers on the market in 2025. With its waterproof and dustproof (IP67) design, big pro sound with punchy bass, and a 7-hour battery life , this speaker proves that good things truly come in small packages. JBL Go 4 – Pocket-sized, waterproof and dustproof with powerful sound. Key Features of the JBL Go 4 Big Pro Sound: Despite its pocket-sized body, the JBL Go 4 delivers surprisingly loud audio with deep, punchy bass. 7-Hour Battery: Long-lasting playtime keeps the music going all day without frequent recharging. Waterproof & Dustproof (IP67): Built to survive splashes, rain, sand, and dust—making it your pe...