Using your Liverpool FC bluetooth speaker is a breeze. First, make sure the speaker is charged. You can use the included charger to plug it in and charge it. The battery voltage is 3.7V and the charge voltage is 5V. Once charged, turn on the speaker and put it in pairing mode. Then, search for the speaker on your Bluetooth - enabled device like a phone or tablet and connect to it. After that, you can play your favorite music and enjoy the excellent sound. When it comes to maintenance, keep the speaker dry and clean. Avoid exposing it to extreme temperatures or direct sunlight. If the speaker is not going to be used for a long time, it's a good idea to charge it every few months to keep the battery in good condition. Also, handle it gently as it's a compact device and might get damaged if dropped.