Notice:  Update on USA Tariff Policy and Shipping Arrangements

Due to recent changes in USA tariff regulations, all shipments to the United States will now be routed through a third country to help our customers avoid high import duties. As a result, delivery times will be slightly extended. Standard Airmail: Estimated delay of approximately 10 days, DHL/UPS Express: Estimated delay of approximately 5 days. We appreciate your understanding and patience as we work to minimize the impact of these changes.

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Free Samples

If you are a blogger of electronics, software, communications or other engineering technology, and your Youtube, Twitter or Facebook have more than 50,000 subscribers, and want to review our products and share them with your subscribers, you can contact us at any time and we will be very happy to provide you with free samples.
If your blog has less than 50,000 subscribers, but you are eager to share your reviews with subscribers, you can still contact us and we will decide whether to provide you with free samples after the evaluation.

Email: lisheng@czh-labs.com
Sunmans
Sunmans