SparkFun Barrel Jack to 2-pin JST Power Supplies Rs. 501 - Rs. 1500 or use a 48V phantom

or use a 48V phantom power to get enough power if the sound is not clear and high enough

When the device is exposed to a magnetic field

35K ohm max (18K ohm typical) series resistance

Small electret microphone

6" spacing between the two rows of pins

SparkFun Barrel Jack to 2-pin JST Power Supplies Rs. 501 - Rs. 1500 or use a 48V phantomTwo pin JST connector to a 2. 1x 5. 5mm barrel jack, 6. 25 inch long jumper cable. We use this cable to adapt from a wall power supply to a relatively small, SMD JST connector. We found that many of the SMD connectors used for battery charging were too large or were not capable of through putting the current we wanted for faster charging. This setup, with a SMD JST connector and wall power supply, can handle up to 2A!