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"directional microphone"
AJMRTC 1PC DC 3V-9V Sound Voice Activated Sensor Module, Intelligent Auto On/Off Delay Sound Control Switch, Microphone Sound Trigger Board for DIY Electronic Circuit Projects
Limited time offer, ends 11/25
$10.85
Free Shipping
AJMRTC 5Pcs Sound Detection Sensor Module, Voice Activated Sound Control Switch Module, Adjustable Sensitivity Sound Trigger Sensor for Arduino, Raspberry Pi, Smart DIY Projects
Limited time offer, ends 11/29
$17.38
Free Shipping
