Roland Aira Compact E-4 Voice Tweaker Features: Lightweight and compact design means portability without sacrificing power Vocoder, Auto Pitch, and harmony modes deliver studio-ready fine-tuning Straightforward formfactor ensures accurate, satisfying tactility Hit the Scatter knob to take your vocals on a wild rhythmic ride Robust range of processing and FX allow for limitless vocal modulation Historic Roland synth waveforms let you craft unique vocoder patterns Onboard MIDI, audio, and synch I/O, as well as USB-C, provide endless interoperative potential with DAWs, controller interfaces, and even additional Aira Compact devices Construct a symphony of sounds with the unlimited overdubbing capabilities in the 24-second looping window Rechargeable lithium-ion battery means 3.5 hours of studio-ready FX, all on the go Weight: 11 oz. Dimensions: 188 (W) x 106.5 (D) x 41.7 (H) mm / 7.4 (W) x 4.25 (D) x 1.7 (H) inches