Product parameters: Heating voltage: 5 ± 0.2V (DC) Working current: 5mA Response time: ≤ 10mS Response frequency: 300hz-200khz Detection distance: 0-5M (and sound source direction and decibel level) Output signal: high / low (high level 5V - low level 0V) Working temperature: 0 ~ 60 ℃ (nominal temperature 20 ℃) Operating humidity: 95% RH or less Non-condensing (nominal humidity 65% RH) Life: 5 years Size: 32mm × 21mm × 16mm Weight: 3g Features * Has a signal output indication. * Single signal output. * The output valid signal is low. * When there is a sound output low, the signal light. * Can be used for voice control lights, with light sensor for sound and light alarm. As well as sound control, sound detection occasions. * Board output switch quantit