Dual Purpose16GB USB Drive,KINGWorld USB Flash Drive for Cell Phones(Not for iphone products),Tablets and Personal computers (Red-B) Only applies to Android,does not apply to iphone. Can compatible with all the Micro USB smartphone and tablet with OTG function.No need install any software,complies with USB 3.0 specification,blazing-fast data transmission speeds.Thoroughly make no barriers between mobile phones and computers,easily transfer content between OTG-enabled Android smartphones, tablets and computers,transfer performance may be different depending on host device.Operating System:Android,Windows.(Excluding iOS) Thoroughly solve the complicated problem of data transfer, backup, can directly exchange files.Safe and reliable.Protect your privacy in your phone.Watch anytime, plug and play, Keep your digital world in your pocket in our smallest package.Expanded Storage for Smartphones & PCs Tablets.Backup your important Photos, Videos, and Contacts. Having all functions available in an ordinary USB memory card.No battery or network required.