As these microphones are powered by a battery, you'll need to make sure they are switched on with a illuminated LED before use with a camera or audio recorder.
If you don't see a LED on the microphone or if it doesn't turn on, try using different alkaline batteries to see does turn on.
These adaptors will work with virtually every mobile device however not every computer/laptop.
When using these microphones with mobile devices, we always recommend using official USB-C/ Lightning to 3.5mm adapters to connect them to mobile devices. Generic 3rd party 3.5mm adapters may not work as intend with microphones.
If you're still having issue with the product, please reach out to our Service Team contact page for further assistance.