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Your cart is empty.Product Description
Specification:
Input: 3.5mm
Output:3.5mm
Capacity: 1050mAH（3.7V）
Amp Using Time: More Than 12-15 Hours
Working Voltage: 8.3V/1A
SNR>120dB
Distortion: 0.004%
Output Power: 40Mw in Impedance 16Ω
Headphone Impedance: 16-300Ω
Audio cable: 1m long, both male
Wide Compatible
Wide Compatible with a Various of Digital Devices, Such as MP3 MP4 Mobile Phone Computer. Phone to headphone amp（Note: 3.5mm adapter cable is not included, you need to buy it yourself）
Two-stage gain switch：
High/Low gain switch for optimal performance of the headphones.It enhances the signal input into the amp circuit for the optimal performance of the headphones.
Make it possible output not only louder sound but a sharper and more Real stereo sound without distortion.
Rechargeable lithium battery：
Built-in 1050mAh Rechargeble Battery, Charge by Micro USB Cable, More Convenient to charge.
It is not recommended to use while charging because current disturbance will occur when charging.
Cha
Reviewed in the United States on March 3, 2025
After being consistently disappointed by the inadequate volume and flat sound quality when using my premium headphones with mobile devices, this Sheiaier amplifier has transformed my daily listening experience. The immediate improvement in audio quality was striking—revealing subtle details in familiar tracks that were previously inaudible while expanding the soundstage dramatically. The two-stage gain switch has proven essential, allowing perfect volume matching across both sensitive IEMs and power-hungry over-ear headphones without distortion. Battery performance exceeds expectations, consistently delivering 11+ hours of continuous use despite the manufacturer's 10-hour claim. I was particularly impressed with its build quality—the aluminum housing has withstood three months of daily commuting in pockets and bags without scratches or connection issues. The minimal circuit noise, even at maximum volume settings, outperforms amplifiers costing twice as much. For audiophiles frustrated by the limitations of direct mobile device connections but reluctant to invest in bulkier, more expensive portable solutions, this compact amplifier delivers remarkable performance improvements while maintaining practical portability for everyday use.
C. G.
Reviewed in the United States on February 4, 2025
Remember last time you connected to some device and your headphones sounded so low, so tiny, bass had no umph, highs were muted?Well get this portable - yes, it had a built in battery - headphone amplifier.Whether your hearing is not what it was before or the device you are trying to connect your wired headphones to does not have enough power to drive them - whatever the reason - this little device is phenomenal.It is small, it is solid, it is made of solid aluminium, if feels cool and heavy in your pocket and it delivers sound to your headphones.You charge it with any USB-C cable then listen to your headphones for at least 8 hours straight - that's how much I tested them for.You won't be sorry so get this little headphone amplifier.Highly recommended !
Bill
Reviewed in the United States on February 25, 2025
Would not purchase again!!!
Olgapmelnik
Reviewed in the United States on February 17, 2025
barely mildly amplifies signal, DO NOT BUY NOR USE!!!!!!
Jeff
Reviewed in the United States on February 15, 2025
Excellent and indispensable for higher end headphones with high impedances that would otherwise not achieve enough volume if plugged directly into a soundcard on a computer or device!
FastFreddy
Reviewed in the United States on January 12, 2025
I purchased this Portable 3.5mm Headphone Amplifier to use with my electronic keyboard, as I am profoundly deaf and require additional amplification to study piano. This little device provides just enough extra power to meet my needs, and I’m impressed by its performance at such an affordable price.Pros:Effective Amplification: The amplifier delivers the extra volume I need without noticeable distortion, even at higher levels. It’s a game-changer for practicing piano on my electronic keyboard.Two-Stage Gain Switch: The high/low gain switch on the back is a great feature, allowing you to tailor the amplification to your specific headphones or situation. I’ve found the high-gain setting particularly useful.Portable and Convenient: It’s compact and lightweight, making it easy to carry around. Plus, it works seamlessly with various devices like my keyboard, phone, and computer.Rechargeable and Functional During Use: I appreciate that the unit can be used while it’s charging. This ensures I don’t have to interrupt my practice sessions.Good Impedance Range: With support for 16-300Ω headphones, it’s versatile enough for different types of headphones or audio setups.Cons:Adapter Cable Not Included: If your setup requires a 3.5mm adapter cable, you’ll need to purchase it separately. This is a minor inconvenience but worth noting.Average Build Quality: While functional, the build feels a bit basic, though this is acceptable given the low price point.Conclusion:For the price, this headphone amplifier is a fantastic solution for anyone needing a bit of extra volume or customization in their audio setup. It’s simple, effective, and portable. Whether you’re studying music like I am or just looking to boost your headphone performance, this amplifier does the job. The two-stage gain switch and ability to function while charging are standout features.
DDS
Reviewed in the United States on December 26, 2024
I've been really impressed with these little amps. I've bought a few of these, always keeping two handy—one for backup, especially for gym sessions. They last about a year, which isn't bad at all, for significantly louder and better sound quality. This one doubles the output of my devices; it's fantastic with my Pioneer DJ headphones (model ends in 50). The gain switch on high works wonders, and there's no hiss, which is a common issue with these amps. However, my last purchase about a year ago recently failed due to charging issues, likely a battery problem. Thankfully, Zongg's customer service was exceptional, offering a quick replacement. Despite this hiccup, the amp's performance and the company's response have earned it a well-deserved high star rating.
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