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Free shipping on All Orders. No Minimum Purchase





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Free standard shipping on orders over $99
Estimated to be delivered on 12/01/2022 - 15/10/2022.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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• HiFi Bass Earbuds :Experience superior sound quality with the KZ d-fi earphones. These HiFi bass earbuds deliver a rich, deep bass response for an immersive audio experience.
• 4-Level Tuning Switch :The earphones feature a 4-level tuning switch, allowing you to customize your audio output to suit your personal preference and enhance your listening experience.
• Sport Stereo Sound :Designed for the active lifestyle, these earphones offer sport stereo sound, providing clear, loud audio even in noisy environments.
• Noise Reduction Headset :The KZ d-fi earphones include a noise reduction headset, ensuring you can enjoy your music without distractions, making it ideal for noisy environments or while on the go.
• Monitor Functionality :These earphones also function as a monitor, allowing you to hear your voice while talking, making it perfect for online classes, video conferences, or just for everyday use.
• Durable Construction :With their durable construction, these earphones are designed to withstand rigorous use, ensuring they last for a long time, providing great value for money.
Standard Version · Tunable Version
High performance flagship dynamiciEM
Pioneering and innovative precise tuning method
The illustrious dual-magnet & dual-cavity dynamic, bings you extraordinary acoustic experience
D-Fi adopts the exclusive custom dual-magnet & dual-cavity dynamicdriver. Dual magnetic what it means dual magnetic circuit, whose magnetic field is enhanced by superimposing the magnetic force of 2 magnets, which to acieve energy efficiency and stronger transient performance.


Pioneering and innovative precise tuning method
The traditional tuning method is achieved by replacing dampers with different mesh numbers and sizes, but this method cannot accurately control a certain frequency band. KZ adopts innovative circuit board adjustment methods, which can accurately control each frequency band according to our target curve.
Two versions available
Meet the individual needs of different music lovers
D-Fi is designed with a standard version and a tunable version. Standard versionhas an accurate and balanced frequency responsetuning. Tunableversion can achieve 16 different sound styles by adjusting the toggle switch to meet the different needs of more players.
Precision four-gear switches
Sixteen tuning styles
D-Fi adopts exclusive patented tuning technology and is equipped with precise 4 gear electronic switches. The first, second, and third gears are adjusted for low frequencies, and each additional gear increases the lower frequency. The fourth gear is adjusted for the full frequency band. Users can customize and adjust sixteen tuning styles according to their personal preferences to meet their individual needs for sound.
Suitable for a variety of music styles, easy to drive
The bass is strong properly & clear, plus the natural & smooth sub bass, treble well-defined, which makes D-Fi becomes one of the dynamic king in the market.
Outstanding parameters bringoutstanding sound quality
Frequency response range is an important parameter for judging the sound quality of anearphone. Most earphones on the market have a frequency response width range of only between 20Hz and 20000Hz. The frequency response width of D-Fi can range from 7Hz to 45000Hz. Therefore, D-Fi has deep enough low-frequency diving and excellent high-frequency performance.
Creative irregular faceplate design
The engaging metal texture is created through multiple processes, andthe mirror effect is achieved after manual mirror polishing. Through the above process, to create high-end IEM.
Focus on ergonomic in-ear designfor cavity & nozzle
Comfortable to wear it
The properly length nozzle, with the ergonomic cavity design, which ensure the earphone comfortable to wear and not easy to fall off. Meanwhile, D-Fi adopts the sound-isolating memory foam eartips to effectively reduce external noise interference
Professional high-purity silver-plated cable
High purity silver-plated wire can reduce signal loss during transmission and ensure high fidelity transmission of sound.
Control all function in one button (only for the cable which with microphone)
High-sensitivity microphone for singing/calling


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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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| Milancelos | Donec pretium egestas sapien et mollis |
| Pellentesque | Sedcus faucibus an sullamcorper mattis drostique des commodo pharetras |
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| Cosmopolis | Donec pretium egestas sapien et mollis |
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