Most listings state an IP67 rating and describe the speakers as waterproof, dustproof, and floatable.
Some listings show replaceable 2 AA alkaline batteries (user-supplied), while other listings describe a built-in, non‑universal lithium battery that is included and rechargeable via USB.
They advertise 360‑degree sound, boosted bass, and an Outdoor Boost button to increase loudness and clarity; one listing also specifies maximum sound levels around 86–87 dBC.
Listings highlight rugged features such as drop resistance (drop‑tested from about 5 ft), dirt resistance, a hanging loop, floatability, and the IP67 rating.
They use Bluetooth for audio playback, and some listings specify a wireless music playback range up to 131 ft (40 m).
Dimensions vary by model. Example listings show sizes such as 4 × 7 × 4 in, 4.53 × 4.53 × 4.65 in, and 4.09 × 3.75 × 3.75 in. Listed weights range from about 0.9 lb up to roughly 1.36 lb.
Yes. They support pairing two speakers: pair once to double the sound (louder mono) and pair again to enable left/right true stereo.
Some listings state certain models use recycled plastic; one listing notes that plastic parts include a minimum of 31% post‑consumer recycled plastic by weight.
