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EAR3H Helmet Amplifier

Meticulously designed, this innovative amplifier delivers a robust and high-fidelity audio experience, enhancing the output volume of your helmet speakers.

Elevate Your Helmet Audio Experience

Elevate Your Helmet Audio Experience

Immerse yourself in an unparalleled audio journey with the IASUS EAR3H Helmet Amp. Meticulously designed, this innovative amplifier delivers a robust and high-fidelity audio experience, enhancing the output volume of your helmet speakers. 

Volume Amplification, Unmatched

Designed to amplify your auditory adventure with an astounding 10dB boost in volume. Revel in the symphony of high-fidelity tones without compromise, as the EAR3H maintains a harmonious balance with no more than 0.3% harmonic distortion. This unparalleled audio enhancement ensures a crystal-clear, distortion-free soundstage, allowing you to immerse yourself in your favorite tunes or communication channels with unprecedented clarity and precision.

Awareness Mode

Stay attuned to your surroundings with the EAR3H, a portable audio amplifier featuring a ‘smart’ mic transparency mode. Seamlessly blend your music with the ambient environment, enhancing your situational awareness without compromising on audio quality. Bid farewell to close calls with traffic or interruptions to your music. Activate the EAR3 smart mic transparency mode by sliding the control to ‘on,’ and immerse yourself in a richer, more dynamic sound experience.

Built for Helmets

Experience the seamless integration of practicality and power with the compact and portable design of the EAR3H Helmet Amplifier. Its simplicity and versatility make it suitable for all helmets, allowing you to effortlessly transfer the amp between your gear whenever you desire.

Battery Performance

Immerse yourself in an audio journey that endures with the IASUS EAR3 Helmet Amp’s built-in lithium-polymer (LiPo) battery. This powerhouse ensures up to 20 hours of continuous usage on a single charge, providing an uninterrupted symphony for the entirety of your ride.


The EAR3H effortlessly integrates into your helmet with IASUS’ proprietary mount system, offering a quick-release design for easy transitions between helmets—a sleek embodiment of practicality and power.

Compact Design

Weighing a mere 1.1oz (30g) including the battery. This lightweight yet robust power source guarantees longevity, allowing you to traverse the open road with confidence, knowing that your audio companion is equipped for the long haul.

Customer Testimonial

Good for riders
Good for riders
Alex F.
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Just got the EAR3 for my daily rides. The sound quality is clear, and the volume control is intuitive. Battery life is impressive; it lasted through my weekend road trip. A solid buy for any rider.
So far so good
So far so good
Brian W.
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Tested the EAR3 on my helmet, and it's doing what I expected. Installation was a easy, and the audio is crisp and loud. No distortion but there is a limit to how loud it can get before the speakers cant handle it. Using the Cardo JBL speakers and considering the XSound 3 speakers. It's small, and the battery life is alright. Best audio solution I've used so far to get more volume.
Pretty great!
Pretty great!
Sienna S.
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Love the EAR3! The volume knob is big enough for gloves, and the sound quality is super good. I was curious about the EAR3s ambient sound blending, and it didn't disappoint. It's a bit senstive so I had to move the amp around so it doesn't just get the wind noise.


EAR3H Expansion Kit

REKON & EAR3 Mounting Kit

Technical Specifications

+ Output Power: 55mW per channel x 2
+ Output Load 16Ω
+ Maximum Noise Output: Less than 0.5mV
+ S/N Ratio: 100dB@32Ω, 20mW
+ Sensitivity Frequency Response: 10Hz to 100Khz +0/-0.1dB
+ Impedence: Input: 1k Ohm, Output: 16-32 Ohm
+ Weight: 1.37oz (39g) including battery
+ Battery: Built-in lithium-polymer (LiPo) battery can last up to 20 hours per charge.
+ Dimensions: 2.0″ x 1.5″ x 0.8″ (51mm x 37mm x 20mm)