Small in size, big in sound! Powered by XIAO ESP32-C3 and the SAM2695 MIDI chip, this compact gadget effortlessly brings melodies to life. With built-in MIDI and a speaker, it delivers rich tones, dynamic polyphony (up to 64 voices), and an extensive selection of hundreds of timbres. Whether you're a crafting sound experiments or a musician composing new tunes, this synthesizer makes music creation smooth and inspiring! Zero-Barrier Creation, Perfect for Music Beginners: With three preset modes and plug-and-play functionality, you can dive straight into music creation-no complex setup required. Built-in speaker and four tactile buttons deliver an intuitive, self-contained experience that eliminates external dependencies. making music from the very , no prior expertise needed. Pro-Grade Performance for Advanced Players: Open-source hardware/software architecture supports deep customization and advanced sound design. With 64-note polyphony and 128-note capacity, unlock limitless possibilities-craft your own signature sound engine, whether you're a beginner or an audio hacker. Ultra-Portable & Fully Hackable: Pocket-sized design (71mm x 49mm x 28.5mm) lets you capture inspiration anytime, anywhere. The 3D printed enclosure is fully open-source to remix and customize-not just an instrument, but your personal music canvas. Core Module; MCU: XIAO ESP32-C3; Sound Generation; MIDI Chip: SAM2695; Polyphony: Up to 64 voices; Instrument Presets: Over 100 different instrument sounds available Interfaces and Connectivity 3.5mm Audio Jack: Used to connect external audio devices (e.g., speakers or headphones) Features auto-disabling of the Class D amplifier when a cable is inserted and re-enabling when removed Physical Buttons: Four side-mounted physical buttons for user interaction XIAO Socket: A dedicated socket designed for the XIAO module, with expansion capability via additional side connectors D-Class Amplifier: Build-in Speaker Power and Indicators Power Supply: 5V Type-C Indicator LED: A single-color LED used to indicate power status and provide user feedback Software Specifications Platform Support: for IDE MIDI Protocol: Standard MIDI protocol 1.0 Operating Modes Mode 1: Sound Test: Test audio output, switch between instrument sounds (128 preset options), and adjust notes within a range (21 to 108, with a default C4 at note 60) Mode 2: Metronome: Tap-based BPM setting and drum track on/off toggling BPM Range: 40 to 240 BPM (default of 120 BPM) Mode 3: Multi-Track Playback: Each track has an on/off state with user-programmed playback sequences Manage simultaneous playback across four different sound tracks Color: White Material: plastic Package Contents: 1 * XIAO MIDI Synthesizer Only the above package content, other products are not included. Note: Light reflection 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.