Mobile phone U disk Applicable system iPod/iphone 5/5C/5S/se/iphone 6/6plus/6s/iPhone7/iPhone7plus/ipad 4/ipad mini/ipad Air, Type-c, Android High speed USB2.0 Reading speed: 20M/S -15M/S Write speed: 15M/S-10M/S Break through mobile phone capacity restrictions, no jailbreak, plug and play Fully compatible to support nearly 40 mainstream formats to support various types of photos, video, audio, etc. Expand the storage capacity of mobile devices, (photo storage, chase drama, movies, TV episodes do not fall) Mobile business is easy to carry (convenient to transfer files) Play video and music as you like without buffering Support image preview, convenient file transfer, file encryption, backup mobile phone contacts. APP: iUSB (ios8 or higher system) Size: 48*48*7mm Weight (mm): 14g Warranty period: December