1.With the latest high integrated chip, Bluetooth 5.0, USB playback, digital signal conversion and analog, KTV Muke wind all-in-one machine, the audio is transmitted to speaker for playing, speaker is upgraded and utilized, and a dongle can enjoy the convenience of various technologies. The remote control can switch various input modes, volume, up and down music and sound effects.2.[Bluetooth 5.0 audio receiver] adopts the highest version of Bluetooth V5.0, providing the best transmission efficiency, stability and ultra-low consumption.3.[digital to analog converter] converts coaxial or optical digital audio signal to analog L / R audio.4.[Support 44.1 32%, 48-96khz playback]. Input code of left and right channels of 24 bit s / PDIF. All connecting ports are made of gold-plated interface materials. Provide electronic noise reduction transmission.5.[U disk music playing] with USB interface, it can directly play the music in U disk, supporting MP3, WAV, wma, ape, FLAC, and other audio formats. Remote control support: play / pause, previous, , sound effect adjustment.[KTV microphone input] microphone interface, for KTV, remote control supports music, mukefeng, volume adjustment and sound effect switching. Audio input connection: coaxial or optical digital audio, Bluetooth 5.0, USB flash disk, microphoneName: Audio DAC ConverterAudio output connection: 3.5mm 2xRCA (R /L) input: AC 100-240V 50 / 60Hz type: charger or USB cable supply: 5V 1a (recommended)Colour: blackMaterial: plastic + metalPackage Contents:1 x Host1 x USB charging cable1 x Remote control (English)1 x Fiber optic cable1 x 3.5mm to R/L audio cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.