Logitech 984-001878 – Ultimate Ears WONDERBOOM 4 Bluetooth Speaker

Overview :

The Logitech 984-001878 Ultimate Ears WONDERBOOM 4 is a compact portable Bluetooth speaker engineered for outdoor entertainment, travel, poolside use, and everyday wireless audio playback. Despite its small footprint, it delivers 360-degree sound with balanced audio reproduction and enhanced bass through dual active drivers and passive radiators.

Built for mobile use, the speaker features Bluetooth 5.2 connectivity, up to 14 hours of battery life, USB-C charging, and a wireless range of up to 131 feet. Outdoor Boost mode increases audio output in noisy environments, while Podcast Mode enhances voice clarity for spoken content.

The IP67-rated enclosure is dustproof, waterproof, floatable, and drop-resistant, making it suitable for beaches, pools, parks, campsites, and other demanding environments. Users can also pair two WONDERBOOM 4 speakers together for stereo playback or increased sound coverage.

The speaker is designed for users who need portability and durability. It is not intended to replace larger home audio systems where deep bass output and room-filling volume are primary requirements. Community feedback generally highlights its portability, durability, and balanced sound performance for its size.

Key Features :

• 360-degree audio with balanced sound output
• IP67 waterproof, dustproof, and floatable design
• Up to 14 hours of rechargeable battery life
• Bluetooth 5.2 wireless connectivity
• Stereo pairing with compatible WONDERBOOM units

Specifications :