About this item HD Stereo Sound QualityThis portable bluetooth speaker is precision designed with advanced audio technology and high-quality speaker units to deliver excellent sound performance and clear music details. You can also connect two speakers at the same time to experience immersive 360° stereo sound. This portable speaker is ideal for music lovers. Waterproof and Rugged DesignThe waterproof bluetooth speaker has an IPX5 waterproof rating to withstand rain, spills, and splashes. It's designed to withstand bumps and drops, more durable than others, and compact and easy to carry. Perfect for pool parties, beach parties, barbecues, biking, hiking, camping, and more. Long Playtime and Multifunctional ButtonsThis portable wireless Bluetooth speaker features a large 4000mAh battery that provides long playback time on a single charge, so you don't have to recharge it as often. Multi-function buttons make it easy to play music, adjust volume, FM radio, and LED lights. Whether you're