Portable Bluetooth speaker is the Ultimate, High-Powered Splash proof Speaker BT: 3.0+EDR Support: L2CAP/A2DP(AVCTP/AVDTP/AVRCP), can receive AUDIO signal and control the AUDIO device Support HSP/HFP (Handsfree profile), Built-in Mic for hands free phone call Portable Bluetooth Speaker With Powerful Stereo Sound And A Power Bank All In One Package. The Portable speaker Takes The Party Everywhere, Durable Fabric And Rugged Housing. Its High-Capacity rechargeable Battery Provides upto 4 Hours Of Playtime. A Built-In Noise And Echo-Cancelling Speakerphone Gives You Crystal Clear Calls With The Press Of A Button. General Specifications Battery Type Lithium-Ion Polymer (22.2Wh) Music Playing Time Up To 4 Hours (Varies By Volume Level And Content) Rated Power 2 X 10W Usb Charge Out 5V / 2A (Maximum) Support A2Dp V1.3, Avrcp V1.5, Hfp V1.6, Hsp V1.2 Frequency Response 65Hz-20Khz Transducer Size (Mm) 2 X 50 Signal-To-Noise Ratio >80Db Bluetooth Transmitted Modulation Gfsk, P/4 Dqpsk, 8Dpsk Battery Charge Time 2 Hrs Weight (G) 800 Power Supply 5V / 2.3A.