?Item Specification? Output resolution: 1080P Charging interface: USB input port, DC 5V Length: 2 meters (6.56ft) ?Compatible with? For iPhone 5,5c,5s,SE,6,6 Plus,6S,6S 7 Plus. For iPad with Retina Display,iPad mini,mini 2,mini 3,mini 4,Air, Air 2,iPad Pro(9.7-Inch) and iPad Pro(12.9-Inch). For iPod Touch 5th Gen(32gb and 64GB),iPod Touch 5th Gen 16gb,iPod touch 6th Generation ?User Guide? Connect the male HDMI to your TV or other HDMI-equipped device. Connect the USB to a power supply up to 5V(for iPhone)/10V or 12V (for iPad). Plug the HDMI cable into your iPhone, iPad, iPod. Click "trust"on your Phone and wait about 5-10 secs them it will sync successfully. Q: Why is it sometimes delayed after playing the game with the screen? A:The product can help you achieve the effect of small screen and large screen. When the game is running on the big screen, because the game runs with large memory, the game effect will be affected by the strength of the WiFi signal at home. The performance of different models of mobile phones is also different. It will be different. Q:Why does it cause fever when used, does it affect? A:The iPhone is connected to the TV screen, and the internal chip of the product needs to process a large amount of sound and video to cause heat, which is easily affected by the environment when used, and the temperature varies in different seasons. No impact on your phone and TV, you can use it with confidence. Q:Why is the iPad connected to the TV screen not full screen? A:The iPad does not support full screen display due to its own resolution. ????? If you want to know more questions, please contact customer service.