ROLAND E-4 Voice Tweaker

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  • Regular price $259.99
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 Estimated delivery: 1-2 Days in Canada.

Free shipping on all orders over $200, some exceptions apply.

E-4 AIRA Compact Voice Tweaker

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.


• 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
• 1/4-inch mic input with wide-ranging gain control
• Headphones output with support for an inline mic
• Comprehensive connectivity with audio, MIDI, and sync I/O plus AIRA Link
• Class-compliant USB-C audio/MIDI interface - no drivers needed
• Lithium-ion battery with up to 3.5 hours of operation per charge
• Sturdy construction and robust controls
• Connect to other AIRA Compacts and standard MIDI devices with optional BOSS TRS MIDI cables


Effect Type:

Maximum Recording Time: Approx. 24 seconds
Display: 7 segments, 4 characters (LED)
Power Supply: Rechargeable lithium-ion battery Obtained via USB port (USB bus power)
Current Draw: 500 mA
Expected battery life under continuous use: Approx. 3.5 hours
Expected battery charging time: Approx. 3 hours
Dimensions WxDxH: 188 x 106.5 x 41.7 mm

Weight: 290 g



Awesome music shop! Very clean, not crowded. Lots of guitars for everyone's musical taste. The staff is super nice, and very informative. I can't say enough good things about Picker's Alley! Thank you so much for serving Southwestern Ontario with such awesome service!!

Pat P

Great music store. Messaged them about a sale item and they put the last one aside for me until I could get there to purchase.

Tim Clements

Tony is by far the best customer service rep around, He knows his stuff, and is always willing to go above and beyond, I only go to pickers alley, for all my musical needs!!

Ryan Mathews

Excellent service, in one word they know what they are doing just tell them your requirement and budget. Don't worry about price if you see it online it's the same price here in offline too. Best thing is the owner's humour and focus on your requirement more than the sales of the store.

Very very happy and satisfied and will be back for additional requirements.

Adhish Prasai

What a great selection of guitars and amps. Staff is very knowledgeable and friendly. If they don't have what you need chances are they can source it for you. Prices are as competitive as big box music stores so there is no need to look elsewhere. I will continue to support local when I can.

Rob storch