Kepo minature buzzers 23 03khz27 03khz31 05khz kepo kpx g0905b 6334 the kepo minature buzzer 27 03khz is an electronic buzzer that offers a high but rich sound able to generate a continuous pulse tone when energised by a 5vdc rated voltage outputs of up to 80db5vdc10cm can be achieved suitable for use in professional commercial and industrial applications kepo kpx g0905b 6334 miniature buzzer 27 03 khz