Az20 Manual

[Oreo Huppe]

Haveyou ever been frustrated by the poor sound quality of your wireless earphones? It's not always your earphones' fault; often, it's about the Bluetooth chip they use. If you desire the convenience of wireless headphones without compromising on sound quality, the KZ AZ20, equipped with a high-end QCC5171 chip, is your solution.

KZ AZ20 promises to deliver the purest and most immersive listening experience. In the audio realm, a higher sampling frequency and bitrate translate into richer, more natural sound reproduction. The 24bit 384kHz capability of the QCC5171 chip pushes the boundaries of wireless audio technology, recreating the most intricate details of your music.

Boasting the QCC5171 chip, currently the pinnacle of Bluetooth technology, KZ AZ20 isn't about false promises. This ultra-high signal-to-noise ratio chip effortlessly covers the frequency response curve of Hi-Fi earphones, providing a clean background sound even under high power output, and offering an unrivaled auditory feast.

In terms of sound quality, call performance, overall performance and power consumption, KZ AZ20 stands at the apex. Using Qualcomm's aptX Adaptive technology, the AZ20 supports high-definition audio transmission at 24-bit 48kHz and 24-bit 96kHz, and CD-quality 16-bit 44.1kHz lossless audio through aptX Lossless. The QCC5171, combined with the advanced Qualcomm technologies, delivers a wireless audio quality that rivals wired audio, faster Bluetooth connections, improved range and stability, and enhanced resistance to interference.

KZ AZ20 boasts an ergonomic design that is based on years of extensive research on human ear contours. The ear hook, made from skin-friendly silicone gel, is pre-molded for a perfect fit. This ensures a secure and comfortable experience even during extended use. Compared to other Bluetooth ear hook products, the AZ20's ear hook volume is reduced by 30%, making it more lightweight and comfortable.

With three performance modes: Gaming Mode, Balanced Mode, and Bass Boost Mode, KZ AZ20 allows you to customize your audio experience based on your preferences and the type of content you are listening to.

The KZ AZ20 provides approximately 6 hours of playback on a single full charge. With the charging case, the total battery life extends to about 54 hours, allowing you to enjoy your music anytime, anywhere, without worrying about frequent charging.

KZ believes in environmental protection and doesn't inflate prices in its name. AZ20 comes in simple and practical packaging, focusing on the performance of the product, not the luxury of the packaging.

We are generally able to ship to most countries via Express Shipping, and many countries via Standard Shipping. You may clarify this with our team to check whether Standard Shipping is available to your country.

We cannot ship to addresses that are "PO boxes or APO/FPO".

*Note: Generally, we can only do Selected Shipping to India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few.

This may be subjected to changes due to unpredictable issues such as Covid, war, and etc.

First, kindly contact your local courier using the local tracking number.

If your parcel were to be in transit for at least 3 months, it may have been lost in transit.

For orders below $50USD, you may either opt for a one-time reshipment of parcel OR a full refund of the amount paid in cash via PayPal/Credit/Debit card.

For orders above $50USD, we will only process a 50% refund of your order paid in cash via PayPal/Credit/Debit card. Should there be any concern about Standard Shipping, you are encouraged to opt for DHL Express Shipping instead.

Should you be unwilling to pay for the fees and reject the delivery of the parcel, you will still have to pay for the shipping cost. Linsoul will only refund the amount of your order after deducting the two-way shipping fees incurred.

Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order.

As our Support Team might not be available during non-working days and weekends, please place your order wisely.

Should you really need to cancel or/and modify your order after purchase, please contact us via our support email (Sup...@Linsoul.com) or website chat. We will help you with the changes if that could be done.

In general, upon receiving your parcel, please confirm the contents of the package and ensure that the package is in good condition before signing for it. All customers are strongly advised to take an unboxing video of their parcel and packaging when opening their parcels and products.

For faulty/missing items, please send an email to sup...@Linsoul.com for after-sale services. The following details are required.

If the photos/videos provided are insufficient to prove the stated issue, we will enquire more. Once the issue has been confirmed, we will arrange for a replacement, partial refund or a full refund (where applicable). For incorrect products, Linsoul reserves all rights in deciding whether you need to return the incorrect item or not. Please kindly contact us via email first. Our team aims to review your email within 3 working days.

After placing an order, you will receive the order confirmation email. After your order has been shipped out, you will also receive a tracking email. You can track your order via the tracking number online. Should you not have received the emails or face any difficulties tracking your order, please kindly contact us for support.

For more than 1 orders placed under the same account and shipping address, Linsoul will automatically combine the orders and ship them out via one tracking number. Should you have special requests to have the orders shipped separately, please kindly contact us via Discord or our website's chat. We will do our best to help.

Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order. Orders that have been shipped cannot be cancelled and modified.

Should you really need to cancel or/and modify your order after purchase, please contact us via our support email (sup...@Linsoul.com) or website chat. We will help you with the changes if that could be done.

After receiving the return instructions from us via email, kindly arrange the return shipment of the parcel within 5 working days, and update us with the tracking link via email again. Failure to do so will result in a cancellation of the return process.

In most cases, after receiving and inspecting the returned product, your refund will be processed within 5 business days. Refunds may incur a currency exchange loss or transaction fee, depending on your source of payment (e.g. Bank or PayPal). Linsoul will not be responsible for such fees.

I tested KZ-AZ20 with my windows pc and saw that it could not do apt-HD (picture 1). To prove that my dongle can actually handle apt-HD, I connected to my Edifier stax spirit s3 (picture 2) and you can clearly see, that I can choose apt-HD. Picture 3 and 4 shows the product disassembled with my nail. It shows no Qualcomm qcc5171 branding on it at all.

in addition to the previous review:

I tested the KZ AZ20 together with the VAORLO QCC3056 adapter - this is the latest and most powerful option that is currently on sale.

AptX HD DOESN'T WORK! AptX Adaptive started, but kz az20 simply loses connection every 10-15 minutes. And without restarting it does not restore the connection.

I checked the adapter (QCC3056) on other headphones - there is no such problem.

3a8082e126