1. It supports Miracast standard for Android devices and home multimedia applications 2. Wireless display: wireless screen mirroring, full-screen mirroring suitable for iOS and Android smartphones, suitable for HDTV or projector tablets, very suitable for PPT presentations and large-screen movies 3. External WiFi module, support 802.11b / g / n wireless connection, 2.4GHz / 5G Wi-Fi, strong signal, support video, audio, photos, wireless display files 4. Support multiple operating systems (for Android/iOS), and support Miracast, Airplay and DLNA 5. Freely switch between Airplay and Miracast modes without a button 6. Plug and play, no driver installation required, easy to operate 7. Support full HD wireless audio and video transmission, 4K output with HD interface 8. The design is compact and easy to carry 9. CPU speed: 600 MHz 10. Memory: DDR3 128 MB 11. WiFi frequency: 2.4 GHz / 5G (optional) 12. The highest resolution: 2.4G 1080p or 5G 4K (optional) 13. Power supply: 5 V 14. File format: PDF, Word, Excel, Powerpoint, working principle 15. Video format: AVI, DIVX, MKV, TS, DAT, MPG, MPEG, MOV, MP4, RM, RMVB, WMV 16. Audio format: MP1, MP2, MP3, WMA, OGG, ADPCM-WAV, PCM-WAV, AAC 17. Photo format: JPEG, BMP 18. Dimensions: 6.1 cm x 3.9 cm x 1.4 cm 19. Weight: about 90 grams The package includes: 1 x WiFi Receiver Display 1 x 2 in 1 USB & WiFi Cable Module 1 x User Manual (English / Chinese)