Earthquake Sound's Limestone-82, part of the new ROCK-on outdoor speaker Limestone series, is specifically designed to imitate rock-like appearance and easily blend in with any outdoor environment. Made with UV-treated, weather-resistant enclosure materials and durable epoxy resin construction, the ROCK-on speakers can withstand the demanding outdoor elements. ROCK-on outdoor speakers are the ideal choice for listening to music in the garden, by the pool, in the yard, or on the patio.