精品九九九九,国产三a级三级日产三级野外,99国产午夜精品一区二区天美,国产精品无遮挡毛片,亚洲午夜经典,国产精品久久久影院,黄色毛片观看

?Versatile angle adjustments for flexible wearing options
?Soft,wide and foam ear cushions 
?Lightweight,ensuring ease of use                                                         
?Excellent noises attenuation effect 
?ANSI, NRR: 23dB   
?CE EN352-1, SNR: 25dB