3 In 1 OTG USB Flash Drives1. Product Attributes● Material: Metal and Plastic;● ... ;● Interface: USB 2.0 Drive, Lightning, Micro USB;● Colors: Rose Gold, Gold, Silver gray, Black, Blue, etc;● Dimension: 52mm x 22mm x ... of mobile phone;● Advantage: Storage backup files, movies, music, pictures, software, data document files, etc.2. Multi Capacities OptionsCapacityMusicMP3 500 Million ...