Welcome to Shenzhen Kingsenyu Technology Co., Ltd

Warranty Policy

Frequently Asked Questions


This is a short list of most frequently asked questions for TWS earphones. For more question and answers you are looking for, or if you need any other support, please email us of start a live chat for further assistance. We’re looking forward to get a good business dialogue with you.


Q1. What is your terms of packing?

A: Generally, we pack our goods in neutral retail package and brown cartons. If you have legally registered patent,

we can pack the goods in your branded boxes after getting your authorization letters


Q2. What is your terms of payment?

A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.


B: T/T, Western Union and Paypal are available.

Q3. What is your terms of delivery?



Q4. How about your delivery time?

A: Generally, it will take 30 to 50 days after receiving your advance payment. The specific delivery time depends

on the items and the quantity of your order.


Q5. Can you produce according to the samples?

A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.


Q6. What is your sample policy?

A: We can offer the sample if we have ready parts in stock, but the customers have to pay the shipping cost.


Q7. Do you test all your goods before delivery?

A: Yes, we have 100% tested before delivery.


Q8: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit .

 2. We respect every customer as our friend and we sincerely do business and make friends with them,

 no matter where they come from.


If you would like to know more information, please send email to us via sales@kingsenyutech.com, Thank you!


Contact Us

    Tel: +86-0755-21057024

    Mobile: +86-18320786832

    E-mail: sales@kingsenyutech.com

    Skype: chrisxiong812

    WeChat: +86-18320786832

    Whatsapp: +86-18320786832

    Add: No. 1050, Kanghuai Industrial Park, No. 60, Ping’an Road, Dafu Community, Guanlan Street, Longhua District, Shenzhen City, Guangdong, China.