Bluetooth speaker 6.5” with strong bass, High quality stereo sound. Rechargeable battery 2000mAh. Colorful LED lights flash alternately. Power Output 5W. Range of Frequency: 90HZ-20KHz. Supports multiple inputs: USB, AUX Input, FM Radio. Made with resistant material for heavy duty and shock proof. Very lightweight design with carry handle which make this speaker extremely convenient to take your favorite music anywhere!