Readeel 2-Pack OTG adapter OTG function Turn into Phone USB Flash Drive Mobile Phone Adapters PLEASE NOTE: This adapter will only work with devices that support USB OTG. Please consult your documentation and/or your service provider to ensure that your device does support USB OTG functionality. Supports all OTG and U disk, the stability is stronger and faster, easy to achieve expansion and two-way data transmission Through the USB MICRO interface, Unibody, small size, easy to carry PERFECT AFTER-SALE SERVICE: Lifetime warranty, whether products or our service let you have any not satisfied, please don't hesitate to contact us, we will be sure to make you satisfied. Offer 100% REFUND and RETURN! Delivery usually takes 7-15 days from China, or a bit longer. due to holidays, and bad weather, customs security check, or the process of the post office during transit