![Aira Compact | J-6 CHORD SYNTHESIZER](https://static.roland.com/products/aira_compact/images/e-4_page_top.png)
The E-4 Voice Tweaker is an outrageously jammable box of fun that harmonizes, auto-pitches, vocodes, loops, and glitches your voice and anything else you feed it. Flip through hands-on controls to manipulate the sound, and chain in AIRA Compacts and other electronic instruments and let them ride in perfect sync.
![Aira Compact | J-6 CHORD SYNTHESIZER](https://static.roland.com/products/aira_compact/images/e-4_page_overview_footer.jpg)
![E-4 Triangle Symbol](https://static.roland.com/products/aira_compact/images/tri_red.png)
Inspiring Roland vocal processing.
The E-4 combines powerful voice transformer tools and standard vocal effects with a tactile interface that’s meant to be played. This lean, mean machine puts a treasure trove of top-quality processing in a go-everywhere gadget that’s endlessly enjoyable and amazingly affordable.
![Aira Compact | E-4 VOICE TWEAKER](https://static.roland.com/products/aira_compact/images/e-4_inspiring.jpg)
![Aira Compact | E-4 VOICE TWEAKER](https://static.roland.com/products/aira_compact/images/e-4_perform_with_sound.jpg)
Perform with sound.
By working the E-4’s inviting panel, you can go from traditional vocal enhancements to punchy beatboxed grooves to striking alien soundscapes—all in a single performance. Select different sonic shapers, trigger looper controls, cycle through Scatter effects, and tweak pitch, formant, and more in the flow.
![Aira Compact | E-4 VOICE TWEAKER](https://static.roland.com/products/aira_compact/images/e-4_harmonic_explorer.gif)
Harmonic explorer.
Take your singing to the next level with automatic harmony effects. Set the key and chord voicing on the fly and bring head-turning flair to any song. And with Auto Pitch, you can dial in everything from subtle tuning fixes to the hard-tuned sounds heard in mainstream pop tracks.
![Aira Compact | E-4 VOICE TWEAKER](https://static.roland.com/products/aira_compact/images/e-4_scatter.jpg)
Loop and Scatter.
Turn one voice into an entire orchestra using the 24-second looper. Overdub layer after layer with the E-4's effects to create wild, vocal-driven rides. Then slice and dice with the expressive Scatter knob, which chops your sound into colorful bits that you control with a twist.
![Aira Compact | E-4 VOICE TWEAKER](https://static.roland.com/products/aira_compact/images/e-4_channel_robot.gif)
Channel your inner robot.
Use direct-access tools to instantly change your vocal gender, conjure sounds from outer space, or transform yourself into a mechanical persona (good or evil is up to you). There’s also a powerful vocoder, which you can drive from a large pool of onboard synth waveforms, the E-4’s pitch functions, or an external MIDI keyboard for an endless variety of textures.
![Aira Compact | E-4 VOICE TWEAKER](https://static.roland.com/products/aira_compact/images/e-4_link_up_and_go.jpg)
Link up and go.
Connect a handheld mic to the front input for performing, or use a gaming headset or the inline mic on your earbuds to bring fresh vocal fun to your next livestream or podcast. Sync with other AIRA Compacts like the T-8 Beat Machine and J-6 Chord Synthesizer to expand your range. Or interface with computer DAWS, mobile music apps, and hardware instruments via USB-C or MIDI.
![Aira Compact | E-4 VOICE TWEAKER](https://static.roland.com/products/aira_compact/images/e-4_everwyhere_at_once.jpg)
Everywhere at once.
The E-4 creatively accentuates vocals anytime and anywhere. The lithium-ion battery provides up to 3.5 hours of power per charge, and the rugged Roland build will support inspired magic and mayhem for a long, long time.
![Aira Compact](https://static.roland.com/products/aira_compact/images/j-6_meet_the_gang.jpg)
AIRA COMPACT
Meet the gang
-
T-8
Beat MachineCreate infectious tracks in seconds flat with a miniature rhythm factory powered by pristine TR drums plus bass from the inimitable TB-303.
INFO -
J-6
Chord SynthPairing a powerful chord sequencer with the lavish tones of the legendary JUNO-60, this portable synth toolbox has the building blocks you need to bring harmonic substance to your jams.
INFO -
S-1
Tweak SynthDivine a new world of sonic textures with a potent micro polysynth and sound design playground inspired by the legendary SH-101.
INFO