Connect the sensor clip to your ear.
Note: you can also connect the sensor clip to your finger if more comfortable.
Plug the other end of the sensor into your iom2.
Plug one end of the USB cable into your iom2.
Ensure that Bluetooth on your smartphone or tablet is turned ON.
The iom2 will automatically search for your Bluetooth-enabled device and attempt to connect.
If your iom2 does not display anything, press the button on the side and the iom2 will begin searching for a Bluetooth device to connect to.