Guangzhou SoundSing Audio Manufacturing Co.,Ltd is a famous acoustic and electronic enterprise with more than 20 years technical experience ,Website:http://www.soundsingpros.com,and mainly producing speakers, passive crossovers, sound box ,amplifier and related accessories. Soundsing who is famous on its quality products has been committed to developing and manufacturing mid-high quality acoustic products. Our company enjoys high position and good reputation in abroad and domestic audio world. Our products are sold to 115 countries of the world and fully cover every corner of domestic market. Soundsing becomes a famous brand and receives unanimous recognition of global and domestic audio world. Soundsing has been researched and developed high quality trend products hardly . we have very strictly on materials and production skills to keep in space of advanced audio technical and guarantee every product perfectly before delivery. Therefore, quality of soundsing products is in the