Using this Meyer Sound MM - 4XP loudspeaker is easy. First, since it doesn't have a power supply, you'll need to find a suitable one separately. Connect the speaker to your audio source like a phone or a music player. When using, make sure the connection to the audio source is stable. As for the damaged power connector clip, handle it gently to avoid further damage. To maintain this speaker, keep it in a dry and clean place. Wipe it with a soft cloth regularly to keep it looking good. If you need to move it, be careful not to bump it hard.