The SONICAKE Warped Dimension Digital Modulation Chorus/Flanger/Phaser/Tremolo Pedal is a versatile unit designed for bass and electric guitars. With its digital modulation capabilities, this pedal offers a wide range of audio output effects including chorus, tremolo, flanger, and phaser. The pedal does not come with batteries included and is made in China. The model number for this pedal is QDS-03, making it easy to identify for users looking for a reliable and high-quality effects pedal for their musical instruments.