Portable Bluetooth Speaker With Powerful Stereo Sound The Portable speaker Takes The Party Everywhere, Poolside Or In The Rain, Thanks To The Waterproof Design, Durable Fabric And Rugged Housing. Its High-Capacity 2200mAh Battery Provides 20 Hours Of Playtime And Can Charge Your Smartphones And Tablets Via Its Usb Output. A Built-In Noise And Echo-Cancelling Speakerphone Gives You Crystal Clear Calls With The Press Of A Button. Wirelessly Link Multiple Connect-Enabled Speakers To Amplify The Listening Experience. General Specifications Battery Type Lithium-Ion.