· Plug and Play: This wireless HDMI display dongle adapter does not need to download applications and software，Just connect the dongle to the HDMI port of the device, turn on the dongle power supply and find the mirror function button, and it can be connected, started and run within 10 seconds, which is truly plug and play. Wireless image transmission can be realized without messy cables and complicated operation steps · Screen sharing: This wireless HDMI dongle supports Airplay mirroring for Apple IOS and MAC systems, and supports Miracast standard protocol for Android and Windows system. The wireless display adapter is compatible with various devices, including notebook computers, tablet computers, personal computers and smart phones, and supports screen sharing. The screen can be freely switched between horizontal and vertical modes, and users can easily project movies, music, sports events, photos, live TV broadcasts, conference videos and other contents through the adapter, thus achieving efficient multimedia presentation and collaboration · HD resolution: This wireless hdmi adapter supports 1080p/60Hz image quality. It can transmit video signals with a resolution of 1920×1080p pixels and refresh them 60 times per second, thus providing a smooth and clear video/audio playback experience · 2.4G/5G dual-band: The wireless display adapter supports 2.4G/5G dual-band technology and is suitable for 2.4G and 5G dual Wi-Fi channels. It will automatically switch between these two frequency bands and select the best signal frequency band according to the environmental interference. 2.4G band has a long propagation distance, but it is slow and vulnerable to interference. The 5G frequency band is fast and stable, but the transmission distance is short and the wall penetration is poor. Dual-frequency complementation ensures continuous signal connection even in complex environment, which makes the network connection more stable, faster transmission and lower delay · Mini size, easy to carry：This hdmi wireless display adapter is easy to carry, you can put it in your bag or pocket for travel, business trips, presentations, meetings, and teaching · Note: This device does not support subscription payment applications with "HDCP" video copyright protection, such as Netflix, Amazon Prime Video, BT Sports, Sky Go, Hulu, Vudu, etc · What can you get by buying our products： You can get a wireless display adapter, an HDMI cable, a power cord, an AV cable and a user manual，Note: HDMI cable is suitable for TV with HDMI interface, and AV cable (RCA cable) is suitable for old TV without HDMI interface · After-sales service: If you have any problems when using the Wireless HDMI Display dongle Adapter, you can consult or contact us by email· Troubleshooting：(1) Video lag: The device may have insufficient power supply, please connect an external 5V/1A adapter if necessary. (2) Signal delay: The device may not have enough memory, long press the switch button to restore factory settings. (3) Unable to connect: Please check if the current interface corresponds to the device's system.