Ultimate Ears WONDERBOOM 4 Wireless Bluetooth Speaker (Gray)

Overview

The Ultimate Ears 984-001879 is a portable wireless Bluetooth speaker designed to deliver immersive 360-degree sound with balanced mids, clear highs, and punchy bass. Equipped with two 1.6-inch active drivers and dual passive radiators, it projects audio evenly throughout indoor and outdoor spaces. With a Bluetooth range of up to 131 feet and a battery life of up to 14 hours, this speaker offers flexibility and endurance for all-day listening.

Its rugged design includes an IP67 rating for dust and water resistance, allowing it to float and withstand drops from up to 5 feet. The integrated carry loop makes it easy to take on the go, whether clipped to a bag or hung from a hook. This speaker fits well in outdoor gatherings, poolside settings, and everyday home use, providing reliable sound and durability wherever you need it.

Key features

• 360-degree audio that fills the room or outdoor area evenly for consistent sound quality
• Bluetooth connectivity with a wireless range up to 131 feet and support for pairing two devices simultaneously
• IP67-rated housing that protects against dust and water, plus the ability to float for added safety near water
• Outdoor Boost mode enhances sound clarity and volume in open spaces, while Podcast EQ improves voice clarity for spoken content
• Up to 14 hours of continuous playback on a single charge, supporting long listening sessions without interruption
• Durable construction that resists drops from up to 5 feet, making it suitable for active use and travel
• Integrated carry loop for easy portability and attachment to bags or hooks
• Option to pair two speakers for true stereo sound, expanding your audio experience
• Built with at least 31 percent post-consumer recycled plastic, supporting environmentally responsible manufacturing

Key specs

• Drivers: two 1.6-inch active drivers with dual passive radiators
• Bluetooth range: up to 131 feet
• Battery life: up to 14 hours per charge
• Water and dust resistance: IP67 rating
• Drop resistance: up to 5 feet
• Material: minimum 31% post-consumer recycled plastic

Connectivity and compatibility

The speaker connects wirelessly via Bluetooth, allowing seamless pairing with smartphones, tablets, and other Bluetooth-enabled devices. It supports simultaneous connection to two devices, making it easy to switch control between users without needing to disconnect and reconnect. Additionally, pairing two units creates a stereo setup, enhancing the listening experience for music or podcasts.

Ideal uses and environments

This speaker is well suited to outdoor activities such as picnics, camping, and poolside gatherings where durability and water resistance are essential. Its long wireless range and robust battery life also make it a strong choice for home use, whether in the kitchen, living room, or backyard. The tailored sound modes help optimize audio for different settings, ensuring clear voices during podcasts and boosted sound for open-air environments.