Kepo minature buzzers 23 03khz27 03khz31 05khz kepo kpx g1212b1 6341 the kepo minature buzzer 31 05khz is an electronic buzzer that offers a high but rich sound able to generate a continuous pulse tone when energised by a 12vdc rated voltage outputs of up to 85db12vdc10cm can be achieved suitable for use in professional commercial and industrial applications kepo kpx g1212b1 6341 miniature buzzer 31 05 khz