This wireless speaker's innovative design utilizes two active speakers and two passive radiators, providing deep rich bass for hours of listening enjoyment. True wireless stereo allows you to pair two Sound Ring speakers to the same source to form a true wireless stereo system. Spread your Sound Ring speakers 20 ft apart to fill your space with 360 sound. Built-in microphone allows you to answer calls with the touch of a single button. IPX6 Waterproof tested to protect your device from high-speed water jets, so if you were to get caught in a powerful rain storm or heavily splashed when poolside, your speaker is protected. Stylish dual LED indicators notify you with visual alerts when charging, charge complete, and pairing the speaker to your phone, tablet, computer or TV.