A telescoping monopod designed to grip a smartphone or camera at a distance. From an electronics perspective, they often incorporate a simple Bluetooth trigger or a wired connection through the audio jack to send a shutter command to the device.
Heard on the job
We had to test the Bluetooth shutter latency on five different selfie stick models to ensure compatibility.
Insider tip
Older wired versions used the headphone jack microphone contact to short a circuit, tricking the phone into reading a volume-up button press to trigger the camera.