Hochwertiges Android 11 Двойная система 3840X2160 Ultra HD 4K Инфракрасный сенсорный светодиодный интерактивный сенсорный дисплей Доска

1. Free sample serviceSample can be FREE! Return the money in the quantitiy order, contact us for sample free policy! 2.What is your lead time?-It depends on the order quantity and the season you place the order.-Usually we can ship within 3-7 working days for small quantity, and about 7-15 working days for large quantity. 3.What is your payment term?-T/T, Western Union, MoneyGram, and Paypal. This is negotiable. 4.How do you make our business long-term and good relationship?-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. 5.Do you provide OEM/ODM service for interactive flat panel?Yes, we do, customization range can be Graphic Design/Package/Logo. 6.How about the product quality? Quality is the first, we focus on every detail. Our products have been strictly tested high quality by QC before shipping to customers. 7.How about your warranty term?Standard warranty time is one year, If you need more time, we can discuss. 8.What about the product after sale service?If any problems for the product, you will get our reply within 24 hours. Solution will be offered instantly.