Features: 1.4k Resolution: WiFi display adapter for stable video transfer, supports 4k high resolution mirroring from your phone/tablet/laptop/desktop device to HD Multimedia Interface TV/projector/monitor. 2.Dual Band WiFi: WiFi display dongle supports 2.4G and 5G WiFi channels. Connect to 5G WiFi for a smoother viewing experience With external antenna to provide strong and more stable signal connection. 3.One Touch Switching: Watch videos on the big screen and switch between horizontal and vertical screen modes with one touch to meet various application scenarios. 4.Applications: 4K HD wireless display adapter supports multiple wireless screen protocols including Miracast, DLNA, EZMira. for wireless sharing of PPT, emails, documents and other content, wireless sharing of teaching content, wireless sharing of photos, videos, movies. 5.Universal Compatibility: Wireless display receiver is compatible with all mobile/tablet/laptop/desktop devices all for IOS devices, for OS X devices, for Andriod devices, for Windows devices, etc. specification:Item Type: Wireless Display Adapter Material: ABS Wireless: 2.4G/5G Resolution: Support 4K Resolution Image Transmission Support System: for Android, for iOS, for Windows, for OS X DLNA, Miracast, EZMira PackageList:1 x WirelessDisplayAdapter 1 xAntenna 1 xUser Manual