The JBL Go 4 is a pocket-sized ultra-portable Bluetooth speaker that delivers punchy, bass-forward sound in a remarkably compact form factor. Weighing just 4.3 oz (122g), it fits easily in a backpack, pocket, or bag strap.

Sound & Power: Single full-range driver produces surprisingly full sound with emphasized bass character—great for pop and hip-hop, though bass can boom on max volume. Rated around 82dB SPL—adequate for personal/small group use but not a room-filler.

Battery: 7-hour runtime per charge covers a full day of casual listening; USB-C charging.

Water & Dust: IP67-rated—fully waterproof and dustproof, surviving submersion to 1m for 30 minutes. One of its key selling points.

Connectivity: Bluetooth 5.3 with ~32ft range; no aux input or microphone. Supports stereo pairing with another Go 4 for true stereo or party mode.

Build: Durable rubberized exterior, compact cylindrical design with carry loop. Proven track record among ultralight-speaker users.

Who It's For: Budget-conscious travelers, outdoor enthusiasts, poolside listeners, or anyone prioritizing maximum portability over room-filling loudness. Best as a personal speaker or small-group outdoor companion.