Product specifications: Power supply: 5 v1a dc CPU: 600 MHz Memory: 128 MB Maximum resolution: 1920 * 1080P, 30MHz Cable length: 1 m /3.3 ft How to use: (1) connect the USB power input port to the power adapter or TV USB port to power the HDMI connector (note: at least 5V/1A, not more than 5V/ 2.1a) (2) connect the TV through the HDMI interface and switch the TV to the corresponding HDMI channel (3) insert the original charging cable of the mobile phone into the USB input port (4) the trust option will p.op up on the phone screen. Click it and wait for 5-10 seconds for automatic connection Warm tips: 1. It is recommended to use the original cable or high quality cable, otherwise it will not be synchronized 2. There is no power failure during the firmware upgrade. After the upgrade, the HD mirror cable can be used normally 3. Only supports android 5.0 and above, iOS 8 and above The package includes: 1 x HDMI mirrored HDTV video adapter cable Note: Due to copyright protection (HDCP), some applications (such as Netflix, Amazon video, HULU) may prohibit the public sharing of on-screen content Not compatible with applications that have HDCP video rights, such as Netflix, video, HBO go, HULU, and Honda 1.Powerful compatibility: this hd image cable adds android to support all iOS 8+ systems to maximize your needs; 2.1080P hd display: support 1080P high digital signal output, you can play streaming media or local pictures, music, video, games, PPT, Word, Excel from compatible with iPhone, Android, laptop or other MHL supported devices to your large hd TV, projector and monitor; 3.Low delay cooling: no delay, high definition conversion, perfect synchronization for watching mirrored TV/movie/video and playing games. The design of the shark's mouth is more conducive to heat dissipation; 4.USB charging cable: to the HDMI cable with the 5V 1A USB charging cable, you can charge your phone when you use the cable; 5.Easy to use: plug the HDMI connector into an hdmi-enabled device, and (input)/ HDMI(output)/ USB(power :5V 1A) connects a smartphone, tablet, or other mhl-enabled device to an HDMI TV