ue ultimate boom

Across the listed UE Ultimate Boom models, advertised battery life ranges roughly from about 13 to 20 hours. Example listings show 'up to 13 hours', '14 hours', and '20 hours', so actual runtime varies by model.

Most listings show an IP67 rating—meaning the speaker is dustproof and can be submerged in about 1 m of water for up to 30 minutes, per the product descriptions.

Descriptions emphasize all‑around (360°) sound with pronounced low end. Common marketing phrases include "360-degree sound," "thundering bass," "booming bass," and "full stereo audio."

The listings show a mix of power options: some models use USB‑C charging, others list Micro‑USB, and a few specify replaceable batteries (for example, 2 AA alkaline or proprietary/non‑universal lithium cells).

Durability notes differ by model. Several listings mention drop protection (examples include drop‑tested from about 1 m / 3.28 ft or roughly 5 ft), others are described as drop‑proof, and some models are explicitly described as floatable.

Advertised wireless range is generally in the 131–147 ft (40–45 m) range; specific listings note 131 ft (40 m) or 147 ft (45 m).