https://www.youtube.com/watch?v=wuhEeqNZhsE&t=63s Product Information: The E-4 Voice Tweaker is a versatile vocal processor that harmonizes, auto-pitches, vocodes, loops, and more. With hands-on controls, it transforms vocals into beatboxed grooves or alien soundscapes. Automatic harmony effects and Auto Pitch enhance singing, while the powerful vocoder offers a variety of textures. The 24-second looper allows layering with effects, and the Scatter knob adds expressive chopping. Connect a mic or headset for live performances or use USB-C/MIDI for interfacing with other devices. With a lithium-ion battery, the E-4 provides creative vocal enhancements on the go. Product Features: Processor Type: Vocal Processor Warranty period:12 months Vocal performance tool with powerful voice transformer effects Instantly shape the sound with pitch and formant sliders Advanced vocal effects including Auto Pitch, harmony, and vocoder Dial up unique rhythmic effects with the Scatter knob Process the sound output with high-quality reverb, echo, tempo delay, and chorus effects Low-cut filter and noise gate to eliminate unwanted sounds 24-second looper with unlimited overdubbing, undo/redo, and automatic BPM detection Supports external MIDI control of pitch, harmony, and vocoder functions For more information and specifications, please refer to the manufacturer’s website