Crystal patch M49SMD Mini S 4*7 24MHZ 24.000M
The mini amplifier has an electret microphone (MIC1) and LM386 low voltage audio power amplifier (U1), speaker speaker (SPKR1) and other components.
Dc Male Connector,Dc Power Jack Connector Male,Barrel Connector Male,Dc Power Connector
Dongguan Swan Electronic Technology Co., Ltd , https://www.swanconnector.com