Operation confirmed. The following is a product description. Key Features Brand Name: AITONE Style: Drum Machine Color: Yellow Product Weight: 157 grams Voltage: 9 volts (DC) Current: 120 microamps The AITONE drum machine guitar pedal uses actual audio samples of built-in sound groups. A total of 48 grooves are included. It is classified into 6 different music genres, with 8 rhythm patterns for each genre. Two types of EQ presets are included depending on the situation. Counterclockwise rotation cuts the low frequencies (for cutting low frequencies when connecting to an FRFR device), and clockwise rotation cuts the high frequencies (for emphasizing high frequencies when connecting to an FRFR device). Real-time fill function: Each rhythm has its own built-in variation (fill). Variations can be added to any measure and any beat during drum machine playback. Power adapter is not included. To ensure proper operation of the pedal and prevent unexpected noise, we recommend using the AITONE genuine power adapter or a reliable third-party adapter. Translated with DeepL.com (free version).