This Meyer Sound MM-4XP loudspeaker is a great audio option, but it doesn't come with a power supply. It's a compact self - powered device that can offer excellent sound quality.

To use this Meyer Sound MM - 4XP loudspeaker, you'll need to connect it to an appropriate external power source since it doesn't have a built - in power supply. Place it in a stable location where sound can spread well. When using, keep it away from moisture and extreme temperatures. For maintenance, clean it with a soft, dry cloth regularly. Don't use harsh chemicals or abrasive materials as they may damage the speaker. Also, make sure to handle it gently to avoid any physical damage.