EAR3H-MK2 Helmet AUDIO Amplifier
Meticulously designed to redefine helmet audio, the all-new EAR3H-MK2 delivers powerful digital amplification in a sleek, compact form.
Professional-grade digital amplification for riders who demand louder, cleaner helmet audio.
$99
Quick Summary
The EAR3H-MK2 is a precision-engineered helmet audio amplifier designed to deliver louder, clearer, and distortion-free sound for riders. With up to +12dB digital amplification, three-level volume control, USB-C fast charging, magnetic quick-release mounting, and IP66 water resistance, the EAR3H-MK2 transforms your in-helmet audio, whether for music, GPS, or helmet communication systems. Compact, lightweight, and universally compatible, it’s the ultimate audio upgrade for any rider.
Elevate Your Helmet Audio Experience
Riding at speed shouldn’t mean compromising on sound. Wind, engine noise, and helmet insulation often make even premium audio systems feel muffled. The EAR3H-MK2 solves this problem by amplifying your helmet audio cleanly and powerfully so you can hear every note, instruction, or prompt with clarity.
Precision Digital Amplification with Up to +12dB
The EAR3H-MK2 uses advanced digital amplification to deliver:
- Up to +12dB volume boost
- Less than 0.3% harmonic distortion
- Full frequency response (20Hz–20kHz)
Experience fuller bass, crystal-clear vocals, and precise audio detail at any volume; perfect for music, GPS navigation, and helmet communication systems.
12 Levels of Audio Control
Twelve Levels of Audio Control
Adjust instantly to your environment:
- Low: Urban streets and quiet rides
- Medium: Moderate wind and traffic
- High: Highway and extreme wind conditions
A simple, glove-friendly button lets you adapt your amplification without distraction.
Magnetic Quick-Release Mounting
Magnetic Quick-Release Mounting
- Ultra-strong 3M adhesive keeps the amplifier secure
- Snap on for rides, remove in seconds
- Designed for convenience and durability in motion
Long-Lasting Power
- 90mAh rechargeable battery
- Up to 7 hours of continuous playback
- USB-C fast charging in just 90 minutes
- LED indicator: Red = charging, Off = ready
Ride all day with confidence that your audio keeps up.
Magnetic Quick-Release Mounting
Magnetic Quick-Release Mounting
- Ultra-strong 3M adhesive keeps the amplifier secure
- Snap on for rides, remove in seconds
- Designed for convenience and durability in motion
Universal Compatibility
The EAR3H-MK2 works seamlessly with:
- Most helmet communication systems featuring a 3.5mm earbud port (including Sena Technologies and Cardo Systems)
- High-performance helmet speakers like IASUS XSound series
- Smartphones, GPS devices, and portable music players via 3.5mm connection
Plug in and enjoy immediate high-fidelity amplification.
Built for the Elements
IP66-rated water resistance protects against:
- Rain and road spray
- Dust and dirt
- Harsh riding conditions
The EAR3H-MK2 is designed to withstand real-world riding, not just laboratory tests.
Compact, Rider-Friendly Design
At just 13 grams and measuring 2.5cm x 3.0cm x 0.8cm, the EAR3H-MK2 is small but mighty. Its low-profile form factor fits cleanly inside helmets, adding power without bulk.
Customer Testimonial
Technical Specifications
| Feature | Specification |
|---|---|
| Amplification | Up to +12dB (<0.3% harmonic distortion) |
| Output Power | 70mW/32Ω, 105mW/16Ω |
| Output Load | 16Ω–46Ω |
| THD+N | 0.1% |
| Signal-to-Noise Ratio | 100dB @32Ω, 20mW |
| Frequency Response | 20Hz–20kHz |
| Continuous Playtime | Up to 7 hours |
| Battery | 90mAh rechargeable |
| Charging | USB-C |
| Weight | 13g |
| Dimensions | 2.5cm x 3.0cm x 0.8cm |
| Waterproof | IP66 |
ACCESSORIES
EAR3H-MK2 and BMH Expansion Kit
Frequently Asked Questions
What does the EAR3H-MK2 do?
The EAR3H-MK2 is a compact helmet audio amplifier that boosts your in-helmet sound by up to +12dB. It enhances music, GPS instructions, and communication audio with crystal-clear fidelity and minimal distortion, even at high volume.
Is the amplifier compatible with my helmet communication system?
Yes. The EAR3H-MK2 works with most helmet comms featuring a 3.5mm earbud port, including Sena Technologies and Cardo Systems. It also works seamlessly with IASUS XSound 2.1R, XSound 3 and XSound 4 speakers.
Can I use the EAR3H-MK2 with my smartphone or music player?
Absolutely. The amplifier connects via a standard 3.5mm audio pin plug, giving you louder, clearer sound from any smartphone, GPS, or music device.
How long does the battery last?
The rechargeable 90mAh battery provides up to 7 hours of continuous audio. Perfect for long rides, commuting, or all-day adventures.
How do I charge the EAR3H-MK2?
Charging is fast and convenient via USB-C to 3.5mm jack cable. A full recharge takes approximately 90 minutes. The LED indicator shows red while charging and turns off when fully charged.
Is the amplifier durable and weatherproof?
Yes. The EAR3H-MK2 is IP66-rated for water resistance, protecting against rain, dust, and harsh riding conditions. It’s built for real-world riding environments.
How do I install the EAR3H-MK2 in my helmet?
The amplifier features a magnetic quick-release mounting system with the built in magnetic mount or with strong 3M adhesive velcro stickers (sold separately). Simply attach it to your preferred helmet location for secure placement, or remove it instantly when needed.
Will it cause distortion at high volumes?
No. The digital amplification system maintains less than 0.3% harmonic distortion even at maximum output, ensuring clear, full-bodied audio.
Can I adjust the volume to suit different environments?
Yes. The EAR3H-MK2 offers three levels of volume amplification (low, medium, high) to adapt to quiet streets, city traffic, or highway conditions.
Is it compatible with other IASUS helmet products?
Definitely. The EAR3H-MK2 is fully compatible with the IASUS throat mics, Bluetooth comms and the XSound helmet speakers.
Can I use it with other headphones or earbuds?
Yes. Any device with a 3.5mm connection can be used with the amplifier to increase volume and audio clarity.
Is it suitable for long rides?
Yes. Its ultra-compact, lightweight design and up to 7 hours of battery life make it ideal for all-day riding. The amplifier is also designed for quick swaps and is small enough to carry with you anywhere.