Q1: What's the warranty of the H26 New 2019 Amazon Top Seller Sport Wireless Earphone Factory Earbuds? A1: For the product,our warranty is 1 year. Q2: What standars do your products meet? A2: Our products can meet CE, RoHS standars as your demand. Q3: What's your sample policy? A3: Samples and shipping cost paid by the buyers, and refund to buyers when order confirmed. Q4: What's the delivery time? A4: 2-3 working days for sample,mass production according to the communication. Q5: What's the MOQ for OEM? A5: OEM MOQ is 3000pcs,Stock MOQ is 100pcs. Q6: What is your spare part of products? A6: The average fault rate for the products is around 0.2%-0.3% Q7: Can you print our logo on the product? A7: Yes,but the MOQ is 1000pcs. Q8: How do you ship the finished production? A8:1) By sea 2) By plane 3) By DHL, FEDEX, UPS, TNT etc.