It's important to understand that true wireless transmission of AC power for everyday electrical devices is not possible. AC (Alternating Current) by its nature requires a physical conductor to complete the circuit and carry the current. Wireless technologies like Wi-Fi and Bluetooth transmit data using electromagnetic waves, which cannot directly power electrical devices like your phone or refrigerator.

However, there are projects and tools that utilize wireless principles to detect or signal the presence of AC current, but they don't actually transmit AC power wirelessly. Here are two examples:

It's crucial to remember that these examples only detect or signal the presence of AC current, not transmit actual AC power wirelessly. Working with electrical circuits, especially those involving AC power, can be dangerous. If you're not qualified and experienced in electrical work, it's highly recommended to consult with a licensed electrician for any project or task involving AC circuits.