EAR3H Helmet Amp

Headphones and earphones have now become essential daily gear to connect to music more than ever and with smartphones becoming increasingly more integrated with our lives, we tend to shut off the outside world. Not something you want if you are outside on the streets but with the IASUS EAR3 you can “street smart” your headphones to allow you to know what’s going around you without interrupting your tunes.

(1 customer review)


SKU: IA-E3H-AMP Categories: ,
portable helmet amplifier for sena cardo

Portable Audio Amplifier

Designed to boost motorcycle speakers, the EAR3H music headset amplifier output increases without any distortion (up to 10dB boost in volume with no more than a 0.3% harmonic distortion). The EAR3H stereo amplifier includes a volume control machined from aluminum providing precise control for volume settings even with motorcycles gloves on.

music amplifier boost 3.5mm plug


Compatible with any device with a 3.5mm audio output port. The small, simple, compact and portable design of the EAR3 Helmet Amp is both practical and powerful, suitable for all helmets to boost the volume of your helmet speakers. Securing and releasing the amp from your helmet with its quick release design allows you to move it between your helmets whenever you want.

mobile amplifier for high volume boost

Transparency Mode

Want to hear what’s happening around you? The IASUS EAR3 is a portable audio amplifier with a ‘smart’ mic transparency mode to seamlessly blend your music with the ambient environment around you the way you like it. No more close calls with traffic or interruption to your music. Create a fuller, more robust sound experience as the EAR3 amplifies your audio with the precise analog volume control.

Turn on the EAR3 smart mic transparency mode by pushing the slider to the on position and experience the blend of your music with the outside sound in.

small amplifier


+ 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)

What’s Included

+ EAR3H Helmet Amp
+ Helmet mount with 3m adhesive sticker
+ Built-in rechargeable lithium battery
+ Extension cable with right angled plug (long – 10 inches)
+ Extension cable (short – 5 inches)
+ 3.5mm pin to USB charging cable

helmet amplifier boost volume


Do not turn the volume up too high on the EAR3H. It have the potential to damage helmet speakers, earphones, headphones, etc., should they not be rated for a higher audio input. Use the volume amplification slowly and proceed with caution to avoid over boosting your helmet speakers, earphones, headphones, etc., but most importantly, to avoid permanently damaging your hearing.

Weight 0.26 lbs
Dimensions 5.71 × 5.71 × 1.24 in

1-Year Limited Warranty

1 review for EAR3H Helmet Amp

  1. Alan (verified owner)

    Installed new amp today and it works terrific! First time ever I have had to turn down the volume.. Great job by you guys!

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