With 4K (3840 X 2160) resolution, this wireless screen mirrorer provides you with clear and vivid images on a large screen. Mirror or cast HD videos/games/music/photos/files from phone, tablet, laptop to TV/projector/monitor. Suitable for home entertainment/business/education/training. 5G dual-band, free switching according to environmental signals, preventing video delay and freeze. The high-speed processor provides ultra-clear video and image quality, fast transmission and greatly reduces heat generation. One-click switch between landscape and portrait modes, suitable for multiple scenarios. No need to install the APP, scan the QR code and cast the screen in seconds, and the operation is simple and convenient. In the projection mode, the mobile phone can turn off the screen when playing videos, and focus on watching movies. Support Android/Apple/Tablet/Laptop and other smart devices. No messy cables, compact and lightweight for easy portability. Memory: 4GB System Requirements: Apple/Android Universal Hard Disk Capacity: FLASH Flash Memory Local Storage: 1G Output Resolution: 4k Audio Playback Format: MP3, WMA, WAV, OGG, FLAC, DTS, AAC, AC3, APE Supported Video Formats: ASF, AVI, VOB, MPEG, DAT, RM, RMVB, WMV, FLV, MP4, ISO, TRP, MKV Use Environment: Indoor/Vehicle Interface: HDMI Color: Black, White(optional) Size: 8 x 1 x 5cm Weight: 200g Package List: 1 x Wireless HDMI Display Adapter 1 x Charging Cable 1 x Manual