KS-23S003AW Mechanical buzzer 1. Rated voltage:3.0VDC; 2. Rated current: ... ., Ltd). specialize in producing electro-acoustic components such as buzzer(Piezo electric, electromagnetic, mechanical), piezoelectric ceramic element, SMD magnetic ... in household appliances equipment, watches, toys, alarm systems, reversing radar, ultrasonic cleaning, ultrasonic atomization, marine fish exploration, the range ...