Miracast is standard for peer-to-peer, Wi-Fi Direct wireless connections from devices (such as laptops, tablets, or smartphones) to displays. It allows sending up to 1080p HD video (H.264 codec) and 5.1 surround sound (AAC and AC3 are optional codecs, mandated codec is linear pulse-code modulation — 16 bits 48 kHz 2 channels). The connection is created via WPS and therefore is secured with WPA2. IPv4 is used on the internet layer. On the transport layer, TCP or UDP are used. On the application layer, the stream is initiated and controlled via RTSP, RTP for the data transfer. Adapters are available that plug into HDMI or USB ports that enable Non-Miracast devices to connect via Miracast.