Changes

Ultrasonic Dog Barking Deterrent

87 bytes added, 14:19, 25 June 2019
/* pulsing audio */
The following lines were added (+) and removed (-):
* amplified audio pulses above 20kHz* amplified sine wave audio pulses above 20kHz* piezoelectric tweeter capable of 120+ decibels or piezo siren up to 200 db
Ke0etz
Administrator
4,579
edits