Bluetooth Connectivity For Seamless Wireless Streaming: The Emerson Ers-1002 features advanced Bluetooth technology, allowing you to easily stream music wirelessly from your smartphone, tablet, or any Bluetooth-enabled device.waterproof And Weather-resistant For Outdoor Durability: Built to withstand the elements, the Ers-1002 is fully waterproof and weather-resistant, making it ideal for outdoor use in any environment, from patios to pool areas.solar Charging For Easy Power: With integrated solar panels, the Ers-1002 harnesses solar energy to recharge its battery, ensuring long-lasting playback without the need for power cords or frequent charging.dual Pairing For Expanded Sound Coverage: Pair two Ers-1002 speakers together for a more immersive audio experience, filling large outdoor spaces with rich, powerful sound for parties and gatherings.