1. What is its lead time for samples and mass production? Within 10 work days for samples and 30 days for mass production. 2. How to proceed an order for baseus products? Firstly let us know your requirements or application.Secondly We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places deposit for formal order. Fourthly We arrange the production. 3. Is it OK to print my logo on product? Welcome. Please inform us formally before our production and confirm the design firstly based on our sample. 4. Do you offer guarantee for the products? If you have any issue with our product, simply send us a message Contact us. Your problem will be solved within 7*24 hours. 5. Which certificate you have? CE ROHS FCC are all available.