1. Operating voltage: 4.5V~5.5V
2. Operating current: 30mA @5V
3. Integrates 64Mbit Flash memory
4. Sounds: compliant with General MIDI specification
   - 128 Melodic sounds
   - 61 Percussion notes
   - 32 Percussion samplings (customizable up to 512)
     ⬥ High fidelity, high sound quality
5. Tracks
   - 23 rhythm cycle tracks
   - 8 demo tracks
6. 16 analog signal input channels
7. Audio output
   - DAC x2 @16-bit
   - I²S @24-bit
8. Supports record/playback function (external NOR Flash is needed)
9. Includes customizable metronome function
10. Trigger calibration
11. Interface: UART (baud rate: 31250bps)

To make your performance sound more realistic and immersive, the product offers 15 analog input interfaces, allowing users to connect piezoelectric patch sensors to detect force when playing electronic drums. The sound volume is determined based on the impact force, simulating a real drumming experience.

Additionally, the product provides trigger calibration, which records the maximum voltage value during normal playing for each channel as a reference for calibration based on actual usage. Through calibration, the accuracy and sensitivity of electronic drum performance can be enhanced, while also adapting to different users' playing habits, delivering a highly realistic playing experience.

1. MCU: Holtek HT32F61356, 32-Bit Arm® Cortex®-M0+ Music Synthesizer MCU, including datasheet, package information, etc.