Using this expandable handset is a breeze. First, make sure it's properly paired with your XLC7BT Amplified Cordless Phone System. You'll be good to start making and receiving calls right away. When you're using it, keep in mind that although it has an extended range, moving too far from the base might cause signal loss. As for maintenance, use a soft, dry cloth to clean the handset regularly. Avoid getting it wet or exposing it to extreme temperatures. If you face any problems, check the pairing or contact customer service.