Check the listing for details. [3DMakerWorld] Adafruit Audio FX Sound Board + 2x2W Amp - WAV/OGG Trigger - 2MB. Condition: New. Listed at 24.49 USD. Key FeaturesComes with a 2 x 2W stereo class D amplifierNo microcontroller requiredBuilt in storage - yep! You don't even need an SD card, there's 2MB of storage on the board itself.11 Triggers - Connect up to 11 buttons or switches, each one can trigger audio files to playStereo line out - So you can connect up headphones if desired The Adafruit Sound Board, the fastest way to add audio effects to a project! This is the best sound board from Adafruit for props and costumes! Best of all, this version even comes with a 2 x 2W stereo class D amplifier! If you don't need an amplifier built in, check out the headphone-out version here. The built in storage is good for a few minutes of compressed stereo, and maybe half a minute of uncompressed stereo. Double that if you go with mono instead of stereo.Completely stand-alone, just needs a 3 to 5.5VDC batteryBuilt in Mass Storage USB - Plug any micro USB cable into the Sound Board and your Windows computer, you can drag and drop your files right on as if it were a USB keyCompressed or Uncompressed audio - Go with compressed Ogg Vorbis files for longer audio files, or uncompressed WAV filesHigh Quality Sound - You want 44.1KHz 16 bit stereo? Not a problem! The decoding hardware can handle any bit/sample rate and mono or stereo2 x 2W Class D Amplifier - Get booming instantly, we baked in a stereo amplifier that can drive 4-8 ohm speakers, up to 2.2W with only 1% distortionFive different trigger effects - by changing the name of the files, you can create five different types of triggers which will cover a large range of projects without any programming The sound board is designed to be simple: it does not have polyphonic ability, can't play MP3's, isn't reprogrammable or scriptable, and you can't have any other kind of trigger type. Item Specifics1 - Audio FX sound board1 - Header strip2 - Blue or Black Terminal blocks (2-pin)Dimensions: 23mm x 51mm x 3mm / 0.9" x 2" x 0.1"Weight: 4.9g Batteries, speakers, breadboard, or tactile switches NOT INCLUDED