Before purchase to be know: 1. Players are compatible, such as Android TV Box, Setup Box, DVD Player, HDMI dongle etc, please contact us if the device is not compatible. 2.HDMI IN / OUT Do not pick the wrong, connected to the corresponding equipment OK. 3. Sound volume can be adjusted, the machine has a row of buttons above, the other players also have volume buttons to adjust the sound. 4. This karaoke machine we have done a lot of testing, quality and performance absolutely no problem; 5. Sound delay is inevitable, any karaoke machine will have a sound delay, about 0 ~ 5 seconds delay reaction time, please read product description carefully before purchase. 6. Please read the instructions carefully after purchase, if you have any questions, please feel free to contact us. The main parameters: HDMI input interface:1 HDMI high-definition input interface, support for 1080P, 1.3 / 1.4 version; Power input interface:MINI USB5V 1A; Microphone input interface: dual microphone input; HDMI output interface:1 HDMI high-definition output interface, support 1080P, 1.3 version; Audio output interface: 2-channel analog mixer output, the output amplitude of 1.5V ~ 2V; Microphone volume: 0 ~ 30DB gain amplification; Reverb volume: 0 ~ 5S delay reverb depth adjustment; Bass volume: 50 ~ 10KHZ frequency adjustment; Treble volume: 5K ~ 150KHZ frequency adjustment; Host size: 160 * 100 * 25 (mm); Machine weight: about 350 grams; Working humidity: 10% ~ 60%; Operating temperature: temperature range -10 degrees to 60 degrees; Backpanel: 1 x DC-in 5V via MicroUSB 1 x HDMI IN 1 x HDMI OUT 1 x Audio OUT
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