It's so simple to get started! Make sure you have a battery installed and turn the baby heart monitor on. Connect the provided headphones to the doppler and your phone via the provided cable if you wish to record the heartbeat. Use a gel lubricant (can easily be found in a local store or you can use aloe vera gel) and coat the probe well. Sit or lie down comfortably and relax, put the doppler probe to your abdomen and locate the position of your baby to find out the best direction. Once you get the position right, the heart beat information will appear on your app!