熟女无套内射中文字幕,91人妻在线超碰,亚洲无码av网站在线观看,国产午夜一级a在线观看

It features:  
1. elaborately design to ensure beautiful appearance and great performance.
2. HF: adopts a horn of wide dispersion angle and the diaphragm made of PET Polymeric materials, sound clear and soft. 
3. LF: adopts qualified voice coil withstanding high temperature and unique cooling design, very stable performance.
4. HF feedback protection technology is applied in crossover circuit to protect the speaker and ensures its stability and reliability.
5. Convenient flying-up design suitable for a variety of suspension ways, very easy to fix on the wall and the ceiling, and speaker angles can be adjusted in full range.