... , Frequency response: 90HZ-20KHZ2, Load power: 3W3, Distortion : ≤0.3%4, Speaker Unit: 40mmx25, SNR:> 85dB 6, Charging power: USB 5V 7 ... envionment design3. With swich power and two clour LED light.4. Use new technology.low dissipation.large power 5. Best seller ... 8. 40mm internal magnetic, high-quality aluminum and iron boron speaker. 9. Built-in rechargeable lithium battery, when the maximum playing ...