麻豆精品一区二区三区,精品国产三级AV在线无码麻豆,熟妇高潮一区二区麻豆AV,麻豆亚洲AV无码精品色尤物

10 inch high power differential drive 1.75 inch woofer tweeter diaphragm compression ring polyethylene box made of birch, black steel surface by sand paint treatment at 100 x covering 50 degree angle design, with axial uniform and smooth and partial axial response of the avant-garde appearance and optimization of power response and vocal frequency performance force sound protection technology SonicGuard can effectively protect the high frequency driver with dust-proof net plane No. 16 steel precise design of protective fence divider, avoid power overload and interruptions