Built-in antenna for fast screen sharing The product has a built-in antenna design and supports 2.4G/5G networks. You can quickly share the screen with the other party through a simple connection. Multiple screen projection modes: push/same screen/computer mode Push mode: After pushing the movie to the big screen, the mobile phone can switch apps, chat games are not affected, and the screen can be turned off to watch movies. Same screen mode: Synchronize the mobile phone screen to the large-screen display device, suitable for large-screen games, conferences and offices, etc.<br><br>Computer mode: Supports Huawei mobile phone computer mode, for Samsung Dex, Hammer TNT and other mobile phone desktop expansion systems. 4K visual feast, support 4K high-definition picture quality, audio and video synchronous transmission, immerse in the big screen vision, come to a real high-definition visual feast Color: As Shown Material: ABS<br><br>Package Contents: 1 * screen sharing device<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.