Q1: Are you a manufacturer or a trading company? A: We are a manufacturer, providing OEM & ODM service. Q2. Are your products conforming to our standards? A: Our products can pass the testing as you require, e.g.: CE, RoHS, etc. Q3. What’s the warranty for your products? A: Normally it is 2 years. Q4. What is the delivery date for a sample? A: About the 3-4 working days after getting payment. Q5. What about after-sale service? A: 24hours online, we have professional after-sale department. Any problem, just contact us.