Features: [Unique Karaoke Mixing Amplifier] Stream or video and music freely simply connecting this mixer between RCA and sources for more impressive features such as connecting headphone to the front panel jack for a quiet listening. [Fantastic Audio-visual Enjoyment] Karaoke mixer works fine with 4K/2K scaler and could convert 1080P or lower quality video to an advanced 4K/2K resolution ratio which brings you a total different audio-visual experience. [Bonus Music Adjustment] Karaoke mixer support mix audio from 2 different microphones and allow to adjust music echo individual microphone . Meanwhile offering you a superior stereo audio quality. [Intelligent & Moderative Controller] To make the mixer works simultaneous with Android TV Set Box choosing computer to control the selection of songs or other operations along with streaming or playing the videos or music. [Built-in High Integration Chip] Using imported high integration chip low power consumption high sensitivity strong -interference. Professional manufacturing stable characteristics and high reliability. [Compatible with Multi-devices] Works with multi-devices such as Android Android Set Box DVD Player dongle Laptop Computer etc. Specification: Item Type: Karaoke Sound Mixer Model: KM200 Material: Metal Color: black Optional Plug: Plug Plug(Optional) Item size:16.1*10.2*2.1 cm / 6.34*4.02*0.83 in(L * W * H) Item weight: Approx.409g /14.43oz Package size:20.2*14.3*7.3 cm / 7.95*5.63*2.87 in(L * W * H) Package weight:651.5g /22.98oz Front Panel: 2 x MIC Line-in 1 x MIC 1 Adjust 1 x MIC 2 Adjust 1 x Main Adjust 1 X Echo Adjust 1 X Earphone Slot Back Panel: 1 x DC-in 1 x AV In 1 x AV Out 1 x Output 1 x Input 2 x Audio Output 2 x Audio Input Packing List: 1 * Karaoke Mixer 1 * Cable 1 * RCA Cable 1 * Power Plug 1 * User Manual