Q1. How long is your delivery time?A: In general, if the goods are in stock, it is 1-3 days.But please contact us if the goods are not in stock.Q2: Can I get samples to test before place an order?A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.Q3: How does your factory do regarding quality control?A:Quality is a priority. All products have CE/RoHS certificate, and 100%QC inspections before shipment.Q4: What type of antenna your company have ?A: We have different frequencies and gains according to different types of antenna.Gain: 2dBi, 3dBi,5dBi, 7dBi, 9dBi, 11dBi, 12dBi, 16dBi, 25dBi, ect.Frequency: 315Mhz, 433Mhz, 868Mhz, 900Mhz, 915Mhz, 1575.42mhz, 2.4G,5.8G, RFID, WIFI, GPS, GSM, 3G, 4G, 5G... Outlook: Wall mount,Ceiling mount,Yagi, LPDA, Rubber, Patch, Panel, Magnetic...Q5: Do you accept OEM&ODM Services?A:Yes,we do.We can design according to your requirement.Please consult our customer service for details.