All Sonix products carry a 1 year limited warranty with proof of purchase receipt.

*Warranty Claim:

Thank you for purchasing a Lenntek product.

Please return it to us for examination:

Lenntek Warranty Services
1610 Lockness Place
Torrance, CA 90501

Please package your product securely in a box or bubble envelope to ensure it is not lost in transit. If your return item is missing due to poor packaging or if we do not receive your package, we will not be able to process your warranty. Please make sure to fill in your return address clearly, include a copy of the original receipt, and return the product in its retail packaging.

We can not process your warranty if all of these conditions are not met and we will not be able to return your package.

We typically send out the replacement in about 2 to 3 business days after receiving your return.

*Please note that we can only ship to U.S. mailing addresses.*

Download warranty claim form here

Shipping is free within the United States. For international shipments, additional rates may apply.


You may return your Sonix product within 30 days of the ship date. Item(s) must be in original packaging and unused condition. If it is determined that your item(s) do not qualify for a refund, we will not be able to return it to you. Your refund will be issued to the same credit card you used for the original purchase.


Domestic Returns

You may return your purchase within 7 days of receiving your product.  Frames must be returned unworn and with all original packaging and accessories included.

Pack all items in a secure box and enclose the return form and packing list with your items.  We will provide you with a pre-paid return label upon request.

Please note:  $10 per returned package will be deducted from your refund or credit when using the return label.

Sonix has the right to refuse any returned goods that are damaged through improper packing OR are used by the purchaser.  Sunglasses and their accompanying carrying cases must be returned together for any refund.


International Returns

Please follow the instructions on the return form included in your package. We do not provide a pre-paid shipping label for International orders, please return items to the address listed on the return form.  Please note: Unfortunately we cannot refund duties, taxes or shipping changes.

Please allow 1-2 weeks for your return to be received and processed


Lenntek Corp., (Sonix), keeps any personal information collected of individuals that visit our website accurate, confidential, secure and private. Our Privacy Policy is created to ensure those affiliated with Lenntek Corp. Of our obligation to meet and exceed most existing privacy standards. This privacy policy shall govern any and all data collection and usage thereof. Through the use of https://shopsonix.com, the user is consenting to following data procedures expressed within this agreement.

When you create an account or make a purchase on our website, we may collect various types of information such as: 1) voluntarily provided information etc., which may be used when you purchase products and to deliver the products you have requested 2) information automatically collected when visiting our website, which may include cookies, third party tracking technologies and server logs.

Rest assured that this site will only collect personal information that you knowingly and willingly provide. The site will only use personal information for the purpose for which it was requested and any additional uses specifically provided on this site. We may gather information about the browser you are using, IP address or type of operating system you are using to help us provide and maintain a quality service.

Lenntek Corp. may collect and make use of personal information to assist in the operation of our website and to ensure delivery of the products you purchase. We do not now, nor in the future, sell, rent or lease any of our customer information and/or lanes to any third parties. Lenntek Corp. may disclose your personal information without prior notice to you only if required to do so in accordance with applicable laws or in the case that such action is deemed necessary.

Lenntek Corp. will take every precaution necessary to maintain adequate procedural and technical security with respect to our offices and information storage facilities so as to prevent any misuse, loss, unauthorized access, disclosure or modification of the user’s personal information under our control.

We may revise this privacy policy from time to time. The most current version of the policy will govern our use of your information and will always be at https://shopsonix.com. By continuing to access or use the services after those changes become effective, you agree to be bound by the Privacy Policy.


When can I expect my order to arrive?

After your order is placed, please allow up to 10 business days to receive your order. We provide free ground shipping for all US orders.

Do you ship internationally?

Yes we do! At check-out you will be able to select your country, select shipping rates apply.

The product I want is out of stock.

New items can sell out quickly, but we may get more soon! We restock designs that are the most popular so check back as we usually restock popular items within 2 weeks time.

Where is my order confirmation?

As soon as your order ships, you will receive an email confirmation to the email address you entered on your order. If for some reason, you did not receive an email, contact us at support@lenntek.com.

How do I put on and take off a case?

Step 1: Remove rubber core from the top of the case.
Step 2: Insert phone into the rubber core.
Step 3: Insert the phone and rubber core into the case buttons first.
Step 4: To remove, push phone out through camera hole.

Do you offer any type of warranty?

All Sonix products carry a 1 year limited warranty with proof of purchase receipt. Download our warranty claim form here.


Do you manufacture cases for other design brands?

Yes we do! Please contact support@lenntek.com for more info.

Who do I contact for press opportunities?

Please contact us at press@lenntek.com for all press opportunities.

I am interested in selling Sonix cases. How do I find out more?

Email us at support@lenntek.com for all wholesale and stocking inquiries.












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press@lenntek.com for press and media related inquiries.

support@lenntek.com for all other questions and inquiries.

We will get back to you within 2 business days.

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