Ultimate Ears WONDERBOOM 4 Portable Bluetooth Speaker

A compact Bluetooth speaker that emphasises water and dust protection, portability, and flexible listening modes.

Our take: The WONDERBOOM 4 is worth considering for buyers who value a small, rugged Bluetooth speaker for everyday travel and wet environments. Its listed protection rating, floating design, and optional two-speaker stereo setup are useful features, while buyers should weigh the compact form factor, cable omission, and pairing limitations before choosing it.

What works: IP67-rated dust and water protection is listed for poolside, beach, and travel use., Compact design with an integrated carrying loop., Outdoor Boost and Podcast Mode provide use-specific listening options., Can pair two matching speakers for stereo playback., Product listing states that plastic parts contain at least 31% post-consumer recycled plastic by weight.
Trade-offs: USB-C charging cable is listed as not included., The compact format may not suit buyers seeking larger-scale sound., Stereo pairing requires a second WONDERBOOM 4, and PartyUP compatibility is not listed.

Category: Audio & Headphones

Editorial note: We may use automated tools to organize retailer information and prepare drafts. Unless stated otherwise, this is research-based buying guidance, not a hands-on lab test. Confirm current specifications, seller, price, and availability on Amazon.

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The Ultimate Ears WONDERBOOM 4 is a portable Bluetooth speaker with claimed 360-degree sound, a carrying loop, and controls for Outdoor Boost and Podcast Mode.

According to the product listing, it is IP67-rated for dust and water protection, floats in water, offers up to 14 hours of playback, and can pair with a second WONDERBOOM 4 for stereo sound.

It is a practical option to consider for travel and casual outdoor listening, provided its compact size and included-accessory details match your needs.