Wireless screen projector, 4K Wireless Screen Projection - Office screen projection + Home screen sharing. 4K HD Visual Effects - Supports 4K high-definition resolution, with clearer picture quality and fuller colors. Experience a cinematic visual feast. Stable Design for 360° Signal Reception - The signal is not blocked and interfered, The fixing screws can easily fix screen adapter to monitor or TV. 360-degree signal reception for stable , more stable wiring, and smoother screen sharing. Support Horizontal and Vertical Screen Functions - Free switching with one click, Watch dramas in horizontal screen, short videos and live broadcasts in vertical screen,Switch between horizontal and vertical screens with one click to meet a variety of usage scenarios. 20M Range - Ultra long distance transmission, The signal transmission is strong and stable, covering a range of 20 meters to achieve stable transmission. Watch /chat at same time - The mobile phone screen is projected to big screen, and mobile phone can be switched to other interfaces. Watch on big screen and chat on your mobile phone without affecting each other. One-click Screencasting - Watching on big screen is more enjoyable, Cast short videos from your mobile phone to big TV screen, eliminating need to stare at small screen for a long time Clearer vision and synchronous playback. Big Screen Games More Visually Stunning - Project mobile games to big screen to broaden your gaming . Colour:Transparent-Gray Material:Acrylic Package Contents: 1 * HDTV Display Dongle Adapter Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.