This cable transmits the image from your smartphone to the TV or computer screen, turning it into a remote control and a full-fledged streaming box at the same time. ***Attention*** Transmission function only when connected to a power supply Product features: Transmits the image from smartphones and tablets with a Lightning connection to external screens with an HDMI input No software required, the transmission starts automatically 8-10 seconds after connection Thanks to the 1.80m long cable, the phone can still be held in your hand for operation Resolution: up to 4000*2000 @ 30Hz Outstanding 4K experience Optimal data flow Integrated USB Type-A charging cable can be plugged into a power supply and conveniently charges the smartphone at the same time Cable length Lightning to HDMI: 1.80 m Cable length USB Type-A charging cable: 1.00 m