Features: Point-to-point mode, long transmission distance, the picture quality is stable and smooth. Support 4K image quality, audio and video synchronous transmission. 2 high gain antennas, stronger signal, support 2.4G+5G transmission, high-speed and stable. Equipped with independent transmitter, no drivered required, plug and play, more efficient meeting. One-key to disconnect/reconnect to protect privacy, convenient to use. HD+VGA interfaces, compatible with projector/monitor/TV and other large-screen devices, to meet different needs. Specification: Resolution: 4K Color: Black Shell material: Aluminum alloy+ABS Wireless network: 2.4G/5G Interface: RX: 3.5mm/Type-C/VGA/HD, TX: HD Transmitter size(not include cable): 8 * 6 * 1.6cm /3.15 * 2.36 * 0.63in Receiver size: 12.7 * 6.7 * 1.8cm /5 * 2.64 * 0.71in Packing list: 1 * Transmitter 1 * Receiver