Using the Wahoo Tickr Gen2 Heart Rate Monitor is a breeze. First, make sure the battery is properly installed. Then, put the strap around your chest and snap it in front. It should fit snugly but not too tight. Open your training app or device and search for the Tickr in the Bluetooth or ANT+ settings to pair them. During your workout, the monitor will track your heart rate and send the data to your connected device. When you're done, take it off gently. As for maintenance, keep it dry and clean. If it gets dirty, you can wipe it with a soft, damp cloth. Avoid exposing it to extreme temperatures or moisture. Check the battery regularly and replace it when it runs low to ensure continuous and accurate performance.