KM200 Portable Digital Stereo Audio Echo System Machine HDMI Karaoke Mixer Amplifier 4K2K TV PC Home Theater HDMI Karaoke Mixer Amplifier Portable Digital Stereo Audio Echo System Machine with 2 Mics Works with 4K2K TV, PC, Home Theater, KTV, Android Smart Phone Unique HDMI Karaoke Mixing Amplifier Solution - Stream or play videos and musics freely, simply connecting this HDMI mixer between RCA and HDMI sources for more impressive features such as connecting headphone to the front panel jack for a quiet listening. Fantastic Audio-visual Enjoyment - Rakoit karaoke mixer works fine with 4K2K scaler and could convert 1080P or lower quality video to an advanced 4K2K resolution ratio which brings you a total different audio-visual experience. Bonus Music Volume Adjustment - karaoke hdmi mixer support mix audio from 2 different microphones and allow to adjust music volume, echo, individual microphone volume, meanwhile, offer you a superior stereo audio quality. Intelligent & Moderative Controller - To make the hdmi mixer works simultaneous with Android TV, Set Top Box, choosing computer to control the selection of songs or other operations, along with streaming or playing the videos or music. Product description Ultimate HDMI karaoke mixer amplifier solution! Amplify and echo the sound from external microphones to mix with original sound, then transfers the output via HDMI port both including video and sound. Supports 4K2K scaler which can convert 1080P or lower video to 4K2K size and display on 4K2K TV. Works with multi-devices such as Android Tv Box, Android Set top Box, DVD Player, HDMI dongle, Laptop, Computer etc. Bulid-in echo processor to adjust a higher-grade sound. Mixer works with 4K source player and 4K TV Displayer. Echo Volume Music Volume Control. Two Microphone Inputs. Two Individual Microphone Volume Controls. One HDMI Input and One HDMI Output. Output for HD AC Signal Mixing with Mic sound. Color：Black Item Weight: 10.6 ounces Product Dimensions: 6.3 x 3.9 x 1 inch One Stere