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1. Do you support OEM and ODM service? Yes, we are professional GPS tracker manufacture since 2011, we offer bothe OEM and ODM service. 2. Can I check all my trackerdevices same time on the platform? Yes, you can check all your trackers same time one the platfom. 3. Can you do software customization? Yes, we can help to develp customized software. 4. Do I need to pay for the platform ? No, we offer life free Web Platform and Phone APP. 5. Do you offer Blind Drop-shipping ? Sure, we can offer Blind Drop-shipping cost to every of your request. 6. How many languages will it support for countries or cities? Our APP support 15 languages and we can add any language to your request. 7. What's your delivery date? For samples we can delivery within 1-7 days, mess production need to be negotiate. 8. How your factory control the quality? What's your warranty? Each production process with QC, all the raw material we purchased are certifcated and all our tracker wiht CE, FCC & RoHs certification. The warranty period is 12 months. 9. Can you provide SDK and API? Yes, we can provide SDK and API with order payment. 10. Did the tracker need to have a SIM card? Where can I get the SIM card? Yes, all the GPS tracker need to work with SIM card so can realize real-time tracking. You can buy or use your local SIM card.