Support audio and video synchronization: this HDMI to VGA with audio converter has a 3.5mm audio Jack, you could connect to speaker via a free 3.5mm audio cable. HDMI female to VGA Male adapter has a micro USB port for optional power, providing external power for devices which have low-power output. Wide compatibility: HDMI source is compatible with all desktop/notebook/TV stick/raspberry Pi/tablet PC/digital set-top box/digital Camera/SLR camera/video Camera that have HDMI port; VGA source is compatible with all TV/monitor/project/LCD/TV and other displays that equipped with VGA port. It's single way, not bi-directional, only transfer HDMI digital signal to analog VGA. 1080P high resolution: HDMI VGA adapter supports resolution 720P/1080i/1080P, enjoy home theater. ( Note:.it couldn't convert VGA to HDMI, it is not bidirectional)