Support: MP3, WAV, WMA, APE, FLAC, SBC and other audio formatsSupport remote control: play or pause, previous song, next songSupports converting digital audio signals to analog audioPowerful chip, stable and reliable, high-integrated chip, Bluetooth, USB, digital model conversion and transmission to ordinary speakers for playback, upgrade and use of ordinary speakersBluetooth receiver, built-in Bluetooth 5.0 chipName: wireless receiving digital-to-analog converterInput: Optical or Coaxial or Bluetooth or U Disk or MicrophoneOutput: RCA left and right channels or 3.5 stereoPower supply interface: DC5V2ABluetooth: Bluetooth 5.0Music format: MP3, WAV, WMA, APE, FLAC, SBCSound Mode: Pop, Rock, Jazz, Classic, CountrySpecifications: Colour:blackMaterial:MetalSize:70 x 82 x 27mmPackage Contents:1 x Host1 x USB Cable1 x Remote Control1 x Antenna1 x Fiber Optic CableOnly the above package content, other products are not included.Note: Light shooting 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. Note: 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.