This unit doesn't come with an external power supply. Ideal for professional audio setups.

This Williams Sound FM transmitter is easy to use. First, connect it to your audio source. But remember, it doesn't have a power supply, so you'll need to use your own external one. When using, keep it in a dry and cool place to avoid overheating. For maintenance, clean it regularly with a soft cloth. Don't expose it to water or strong magnetic fields. This transmitter is great for professional audio work, so handle it with care to get the best performance.