I received one directly from the company in Italy and it went to work right away here at my studio to troubleshoot a broken mic cable problem that came up during a session. It will verify that any XLR cable is correctly wired pin-to-pin and are not crossed or reversed (pin 2 for 3), shorted, or open.

In addition, you can check that there is phantom powering present on mic lines in the standardized range of the 44 to 52-volt DC. For powering microphones, phantom voltage is present on both pins 2 and 3 (reference to Pin 1 ground) of the XLR mic cable and there are individual LEDs for those two pins that both should light up when you're good. If phantom power voltage is low--between 24 and 44-volts--the LEDS will flash.

Designed to be very handy for any audio technician in the field, Sound Bullet has a built-in signal generator that outputs either a 1-kHz tone or pink noise out of the male XLR connector at a switchable level of -40, -20, or -10dBu level. I use this function to make sure a mic cable's signal actually gets to the correct mic preamp in my rack and for matching all my 64-channels of analog interface input levels. Being able to do this quickly and at any time encourages me to do this test more often!

You can verify audio signals coming into the female XLR via the small built-in audio amp with miniature monitor speaker. Or plug headphones or in-ears into the headphone jack for silent troubleshooting.

This small audio amp and speaker are very handy when you lose or miss-connect an audio feed down a multi-core cable to determine which individual cable broke or came unplugged somewhere. You can turn on the Sound Bullet and just plug it into the stage box (for one example) and verify that you have a solid connection and good phantom powering at the same time between the stage box and back at the FOH mixer.

Sonnect Sound Bullet also has a ¼-inch unbalanced output jack and comes with a special adapter to test direct boxes and other unbalanced lines using either the 1-kHz tone or pink noise signals. This is more useful than you might think at first and awesome for on-stage troubleshooting to make sure all are working before the talent shows up!

I just love the Sound Bullet! It actually tests with an audio signal and is so small, compact and easily fits in my pocket. It comes with a belt holster, USB charging cable, and instructions. Oh and it is very well made too! I'm sure you could drop it or step on it without worry!