The UGREEN Wireless HDMI Sender and Receiver enables wireless transmission of 4K video content at a refresh rate of 30 Hz, eliminating the need for long HDMI cables between source devices and display devices. This system consists of two compact units: a transmitter that connects via HDMI to your video source (such as a laptop, gaming console, or media player), and a receiver that connects to your display device (TV, monitor, or projector). It supports resolutions up to 4K Ultra HD (3840x2160 pixels) at 30 frames per second, as well as Full HD 1080p at 60 Hz for smoother motion. The wireless connection operates on a stable 5 GHz frequency band, providing reliable transmission with low latency, suitable for presentations, home entertainment, and digital signage. It supports HDMI 2.0 specifications, including HDCP 2.2 content protection for streaming services. The transmitter unit measures approximately 10.5 cm in length, 5.5 cm in width, and 2.0 cm in height, weighing about 120 g. The receiver has similar compact dimensions. Both units feature built-in antennas for optimal signal strength and include power adapters for operation. This system is designed for easy setup with plug-and-play functionality and requires no software installation. It is compatible with various HDMI-enabled devices and maintains audio-video synchronization during transmission. The construction uses durable materials with effective heat dissipation to ensure consistent performance during prolonged use. This wireless HDMI solution offers flexibility in placing video sources and display devices, reduces cable clutter, and maintains high-quality video and audio transmission.