The ST5201W is a 2.4GHz mini digital wireless AV sender with built-in encoder that features WiFi connectivity, H.264 video compression, G.711 audio compression, support for D1, Half D1 and CIF resolutions, adjustable video bitrates from 32Kbps to 4000Kbps, a delay time of less than 0.2 seconds, a built-in web server for configuration, support for two-way audio, snapshot, recording and replay functions, an RS232 interface, support for SD cards, and dimensions of [dimensions]. It has one video and audio input, supports dual video streaming, motion detection, alarm inputs and outputs, and communication via an SD card, RS232, and