Features: brand new and high quality HDMI-compatible Switch allows HDMI-cmpatible devices to be switched or split easily to HDMI-compatible monitors or projectors.for Ideal solution for home theater, office, school, conference room, shopping mall, hotel or museum. Supports 4K 60hz video resolution 3840x2160P.Supports ultra HDR4K, 3D audio and etc. With Optical SPDIF+L/R+3.5mm Jack+Coaxial audio out. Supports audio extractor the Audio from TV to speak, sound bar or amplifier etc. Widely for any HDMI-compatible devices Laptop and HDTV Monitor etc. Just connect your HDMI- devices and the power adapter and enhance your home theater experience with high-resolution video and audio. HDMI-compatible switch can be applied for connection, signal amplification, multi-picture conversion and for selection between computer/PC, for Smart Box, DVD Player, Blue-ray Player, for PS3/ Pro and LCTV,LCD,Projector, as well. Specifications: Device Type: HDMI-compatible to HDMI-compatible Optical + SPDIF + RCA L/R Converter HDMI-compatible resolution: 3840x2160 Audio output: L/R+SPDIF Input/Output DDC signal: 5Volts p-p (TTL) Power adapter format Input: AC (50HZ, 60HZ) 100V-240V; Output : DC5V/1A Operating Humidity range: 5 to 90%RH (No Condensation) Power Supply: for DC 5V/1A Adapter Cable Length: approx 1.14m/3.74FT Power supply: for DC 5V/1A Operating Temperature: -15 to +55 Power Adapter: Input: AC (50HZ,60HZ) 100V-240V;Output:DC5V 1A Dimension: approx 85x60x20mm/3.35x2.36x0.79in Color: Black Material: Metal Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 x HDMI-compatible Audio Converter 1 x Power Adapter 1 x User Manual