Description:The K8 microphone sound needs to be produced through an external sound system,The speaker of the TV set does not support sound output. The user needs to configure an external sound system.Check whether the external stereo works properly before installation.1. Set-top box user check method: the external stereo as a speaker, can play the songs on your set-top box.2. Smart TV user check method: the sound of the TV through the external sound3. Poor connection will cause noise and silence,please slowly adjust the connection connector on K8 host machineSmart TV connection methog support HDMI ARC, When selecting HDMI mode, you need the output device to support HDMI ARC Smart TV /Smart TV box /Set top box /PC/Smart phone Connection method :When the smart TV is connedcted to K8, use HDMI ARC, USB AUDIO, fiber input line in BLT input, and choose the corrosponding cable in any way,3.5 mm cable (K8 3.5mm output) connection for external sound.The volume of microphone and background song can be adjusted separately by the backside knobs.Professional wireless microphone system with 2 microphones, so you can enjoy music with your friends.Wireless design will bring you into a world where you can sing happily and freely with your friends and families.It frees performers from the messy cables and helps them to move unimpeded without fear of tripping over cables duringperformances.This microphone system is easy to use with multiple systems and is the perfect microphone system for any professional or recreational events.Specifications:Material: plastic, metalSize: 15*8.5*2.5cmColor: Red/BlackBuilt in BLTSensitivity: ≤108dbm@12dB SINADAudio dynamic range: ≥106dbFrequency response: 20Hz~18khzDistortion: < 0.5%Ultra low power consumptionPower supply voltage range: (2.0V ~ 3.6V)Working current: < 60 MaDistortion: <0.5%. Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Include:1 x K8 Home Wireless karaoke box2 x Wireless Microphone (1.5V AA x2 Battery Not inclued).1 x USB cable.1 x DC USB cable.1 x Power adapter.1 x 3.5mm audio cable.1 x 3.5mm to 2RCA jack audio cable.1 x User manual.