... 1)Reduce Radiation/Noice 2)Black,white,red.etc. 3)OEM/ODM offered 4)Fast delivery Newest Anti ... button8. Frequency response: 20Hz-20000Hz 9. Sensitivity: 111dB±3% 10.Impedance: 32 ohms11.Speaker diameter: 32mm12. ... . N.W.:205g 14. 9 Colors optional: (Blue, Red, purple, yellow, pink, green, orange, black, pearly white ... must be done the 100% inspection to ensure no bad part flow to you. Notice:If you ...