ViewHD Premium Quality HDMI to Composite | AV Universal Converter for PAL & NTSC Standard TV (HDMI to AV Converter Metal Case (VHD-168)) Reliable full metal jacket construction; Portable, flexible, plug and play Powered by USB, USB power cable is included; 5V1A USB charger is NOT included Support 480i NTSC and 576i PAL TVs; Please make sure the PAL / NTSC switch is at the right position HDMI input supports standard HDMI TV formats up to 1080P HDMI inptu audio format must be mono or 2CH stereo for L/R audio