The UE Wonderboom is a compact, portable Bluetooth speaker from Ultimate Ears (a division of Logitech) that delivers powerful 360-degree omnidirectional sound in a rugged, waterproof design. This Costco 2-pack includes two Wonderboom speakers, offering outstanding value for home, outdoor, and travel use.

Each speaker is powered by two 40mm active drivers and two passive radiators, producing a frequency response of 80Hz to 20kHz at up to 86dBA. Bluetooth connectivity provides a wireless range of up to 100 feet (30 meters), and the rechargeable battery delivers up to 10 hours of continuous playback on a single charge.

Built to IPX7 waterproof standards, each Wonderboom can be fully submerged in up to 1 meter of water for up to 30 minutes, making it well-suited for poolside, beach, kitchen, or shower environments. The compact spherical shape and attached fabric loop allow the speaker to be easily carried, hung, or clipped anywhere.

Both speakers in the pack can be wirelessly paired together using the Party Up feature — simply press and hold the logo button on each unit simultaneously to merge them for a bigger, louder stereo sound experience.