Wireless power refers to the transmission of electrical energy without the need for physical connectors or wires. This technology allows devices to receive power through electromagnetic fields, enabling charging and operation without direct contact. Common applications include charging smartphones, electric toothbrushes, and other small electronic devices. One popular method of wireless power transmission is inductive charging, which uses coils to create a magnetic field between a power source and a device. Another method is resonant inductive coupling, which can transmit power over greater distances. As technology advances, wireless power is expected to become more widespread in various industries.