SOLAR POWER AND 10,000 mAh BATTERY: This Bluetooth Speaker comes fully-equipped with the latest and greatest 4G solar panels to quickly and efficiently convert and store solar energy from sunlight to charge your device. It also comes with a powerful 10,000 mAh lithium ion battery, making this one of the most powerful and longest-lasting solar speakers on the market today. 80+ HOURS PLAYTIME: Longest playtime on the market today means you can take your device the beach, your backyard barbeque, skiing on the mountains or traveling across the globe and still expect to play music the entire day without worrying about conserving the battery. SUPERIOR SOUND: High-quality 10W speaker delivers top of it's class sound and experience through a superior range of high and low frequencies and enhanced bass performance. CHARGE YOUR DEVICES: Designed for ease of use, simply plug your USB cord into one of it's two USB ports to charge any cell phone or device. Works with all Iphones, Samsung Galaxy's and many more models! DUSTPROOF: Active dust management prevents dust, sand, dirt and other particles from damaging the speaker, and thus enabling it to be used in almost any environment