Street Address: 71 Park Road, Tangxia Town, Ruian City, Zhejiang Province. China
Country/Region: China
Features: 1) Diameter: 90mm 2) Voltage: 6V, 12V, 24V 3) Frequency: 335Hz (low tone), 435Hz (high tone) 4) Sound: 120dB Inner packing: Box or blister card