Havit SK755BT Speaker comes with Bluetooth V5.0. The speaker's Country Of Origin and Assemble in China. This Speaker featured with Frequency response: 60Hz-20KHz, Output power: 3W x 2; Impedance: 4ohm. Its Dimensions is 80 x 115 x 174mm and lightweight, so you can easily carry this speaker anywhere. This Havit SK755BT Speaker has USB 5V + 3.5mm plug, So that you can use it as Portable Audio Player, Mobile Phone, computer also. The new SK755BT Speaker offers 01 year warranty.