Built-in Transformer: Built-in transformer and EU plug, the 2 channel Bluetooth 5.0 stereo amplifier receiver provides 250Wx2 P.M.P.O(Peak Music Power Output), which is is perfect for your karaoke and home theater acoustic sound system.6 Inputs & Amplifer Dimension: The digital amp box supports USB/SD card/FM Radio/ Bluetooth/2 1/4 inches microphone IN and various external sources RCA(R,L) audio input for tuner, CD player, tape deck and so on. Amplifier Size: 7.5x5.8x2.5 inches / 19x14.7x6.4cm, weight: 2.4pounds/1.1kg.USB 2.0/SD Card Input: The sound amplifying mixer device features a USB/SD card input to support flash drives or SD card. Allows you to play your favorite audio files from your computer's media library when you connect it directly to the amp.Multipurpose: Recommend for home TV audio, computer audio system-game, tower Speaker, garden speaker. Small simple compact design also for car audio system.Compatible with bluetooth Devices(For Android, Smartphone, Tablet, PC, etc.)Function: Bluetooth receive/ insert/ insert U disk/ remote control/ FM radio/ Cara OK functionSD Memory Card & USB Flash Drive Readers Support lossless music file-MP3, APE, FLAC, WAVIncludes Remote ControlBuilt-in bluetooth 5.0 for Wireless AudioRCA Audio Input (L/R)Dual mic Input Connector JackCompatible with Audio/Computerized DevicesRated impedance: 4 to 16 ohmsRated voltage: 12VRated power: 30W+30WRated frequency: 20-20KHZResolution: 47KDistortion: 0.4%Signal to noise ratio: 80dbPeak power: 250W+250WChannel: 2 ChannelAudio input: R/L audio input Bluetooth/Line/SD/USB,Audio output: the left +R right channel output points, positive and negative poles are connected to a speakers.Plug Type: EU Plug, it applies to Indonesia, Germany, France, Spain,Italy and so on.Colour: picture colorMaterial: ironPackage Contents:1 * Stereo Audio AmplifierOnly 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.