SMA Female PCB Mount (Gold/S Steel)

Double Sided Copper Prototype PCB Circuit...

Breadboard Power Supply Module 3.3V or 5V With USB out

GY-MAX4466 electret microphone amplifier module

1.25V - 37V Output @ 3A DC-DC 3-40V Input Step Down Adjustable Power Supply 3A peek power, 2A constant current.

2.54mm SM 3Pin 22AWG Female Male Housing Connector Plug Wire 10..15mm Length. Female side can be panel mounted

NOTE! Wire colors DIFFER...

0.9-5V To 5V DC-DC Step-Up Power Module Voltage Boost...

Single AA Battery Holder With Wires