Street Address: Cao'er Industrial District, Guzhen Town, Zhongshan City, Guangdong Province. China
City: Zhongshan
Province: Guangdong
Country/Region: China
Specifications: Diameter: Ø 65 Electric pressure: 12 V Electric current ≤ 1.5 Voice class: 90-105 dB Frequency: H: 460±20 Hz; L: 370±20Hz