欧美国产精品三级婷婷色激情五月天,精品国产a线一区二区三区东京热,日韩特黄特色一级毛片,91精品国产一级毛片国语版

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.