BTs Essentials Wi-Fi Powerline 500 Kit turns any power socket into a Wi-Fi hotspot, using your electrical circuits. Connect your smart TV, games console or mobile devices anywhere in your home ; no need to be within range of your existing Wi-Fi router. The kit uses AV500 powerline technology and N150 Wi-Fi technology. The bt essentials wi-fi powerline 500 turns any powersocket into an wi-fi port and means you can connect up any wireless product to your broadband, anywhere in your house. Powerlines. Transfer speed: N500. Plug and play. Wireless standards: b/g/n. Wired.