This Speaker Is The Ultimate, High-Powered Portable Bluetooth Speaker With Powerful Stereo Sound. The Portable Tg-113 Takes The Party Everywhere, Poolside Or In The Rain, Thanks To The Waterproof Design, Durable Fabric And Rugged Housing. Its High-Capacity 4,000Mah 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 Jbl Connect-Enabled Speakers To Amplify The Listening Experience. General Specifications Battery Type Lithium-Ion Polymer (22.2Wh) Music Playing Time Up To 20 Hours (Varies By Volume Level And Content)Bluetooth Transmitted Modulation Gfsk, P/4 Dqpsk, 8Dpsk Battery Charge Time 4.5 Hrs Weight (G) 800 Power Supply 5V / 2.3A. Features & details 4.1 Bluetooth Speaker Jaw-dropping Sound Quality and Volume best speaker for laptop and mobile Wireless Portable 4.1 Bluetooth Speaker - Whether you're Partying, Walking out, Camping, Hiking, Biking, or just lounging around the house, enjoy a full-range stereo sound with a impressive volume Built-in rechargeable 3.7V, 1200mAh lithium-ion polymer battery: Provides extended playback, enables you to stream music for up to 6 hours on a full charge speaker bluetooth Broad Compatibility: Quick pairing through Bluetooth with popular smartphones Speaker for mobile, Wireless speakers, Wireless Speakers for Computer.