Powerful chip, stable and reliable, high integrated chip, Bluetooth, USB, digital model conversion and transmission to ordinary speakers for playback, and upgrade and use of ordinary speakers.Application scenarios Home theater, U disk music, home K song, mobile musicSupport: MP3, WAV, WMA, APE, FLAC, SBC and other audio formatsSupport remote control: play/pause, previous song, next songMusic format: MP3, WAV, WMA, APE, FLAC, SBCName: Wireless receiving digital-to-analog converterInput: optical fiber/coaxial/Bluetooth/U disk/microphoneOutput: RCA left and right channels/3.5 stereoPower supply interface: DC5V2ABluetooth: Blutooth 5.0Sound effect mode: pop, rock, jazz, classical, countrysize:8.5 x 7.2 x 2.8cmMaterial:Metalcolour:blackPackage Contents:1 * Host1 * USB cable1 * remote control1 * antennaOnly 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.